A comic reader shouldn’t have to solve the lettering before getting the joke. Put the punchline above the setup, or point a balloon tail towards the wrong character, and even a beautifully drawn panel becomes work.
Comic speech bubbles are part of the composition from the beginning. If you’re using GPT Image 2 or Nano Banana Pro to develop a comic, reserve space for the conversation before asking for detailed scenery. Otherwise, the most important piece of dialogue may end up squeezed into the only patch of empty sky.
You can work this out with rough boxes. The drawing doesn’t have to be good yet. It only has to show where the reader’s eye should go.
The joke has a route across the panel
For a first layout with GPT Image 2, consider this original exchange between two fictional characters:
Mara: Did you fix the teleport button?
Jo: Which one?
Mara: The one under your elbow.
The order carries the joke. If the final line is read first, the reader loses the small discovery that makes the exchange work. A layout needs to preserve the sequence before it worries about the control room’s impressive machinery.
For a conventional English-language layout, arrange the dialogue so its intended left-to-right and downward path is clear. Don’t rely on a rigid rule to rescue an ambiguous composition; inspect the actual path your balloons create. Comics using a different reading direction need to be planned for that direction from the outset.
In a single panel, Mara may need room for both the opening line and the return line. That can become crowded. Splitting the exchange across two panels may be the cleaner choice: the first establishes the repair question, while the second reveals the elbow and delivers the response.
This decision affects the characters’ positions. Jo’s elbow has to remain visible, and the last balloon shouldn’t cover it. A beautifully drawn control panel is expendable if it occupies the space needed for the reveal.
Reserve space for comic speech bubbles
Sketch rough balloon shapes at approximately the size the dialogue requires. Place the words inside, even if the lettering is temporary. A tiny placeholder circle is misleading when the final sentence needs several lines.
Keep the rough text separate from the picture you intend to generate. It can serve as a layout reference, but final comic lettering is easier to adjust when it remains editable. You may need to change line breaks, move a tail or shorten a sentence after seeing the artwork.
When describing the panel, state where empty space is required and which action must remain unobscured. Avoid instructing the image model merely to “leave room for dialogue.” Room in the wrong part of the panel won’t help the reading order.
Also allow for tails. A balloon may fit comfortably above a character while its tail crosses another balloon or points across the panel at the wrong speaker. Draw the route on the rough and move the balloon or character if the connection is confusing.
For the teleport exchange, the drawing request could specify Jo on the right, the elbow clearly resting beside the control and a quiet upper area for the first reply. The exact arrangement depends on the page. This is a compositional brief, not a tested model prompt.
If a panel needs too much dialogue, edit the dialogue before enlarging every balloon. Sometimes a character can answer in a later panel. Sometimes the picture already conveys the information a sentence repeats. Cutting that sentence creates space for both the art and the joke.
A beautiful panel can still fail the page
Try the rough layout with Nano Banana Pro as a separate visual interpretation. Both this model and GPT Image 2 offer image generation and editing, according to their respective vendors. That shared capability doesn’t establish which will honour your particular page arrangement more reliably.
Put each result beneath the same temporary lettering. Can the characters still be identified quickly? Is the intended empty area actually usable? Has the elbow disappeared behind an appealing prop? Evaluate the picture as a comic panel, not as a standalone illustration.
Then place the panel beside its neighbours. A large speech bubble near the gutter can pull attention into the next panel too soon. A dramatic shape in the artwork can interrupt the intended route. These problems may only become apparent when the whole page is visible.
Read at the intended display size. Tiny dialogue that remains technically legible when zoomed in may still make a page tiring to read. If the comic is meant for a phone, the phone preview deserves a separate review from the full-size artwork.
Letter the version you are going to publish
Once the art is settled, replace the rough balloons with the final lettering. Check speaker ownership, line breaks and the order in which the words are encountered. Avoid leaving generated pseudo-lettering underneath the final text, where it can show through as unexplained marks.
Read the dialogue aloud while pointing to each balloon. That simple action makes a misplaced reply harder to overlook. If possible, hand the page to someone who hasn’t seen the script and ask them to recount the exchange. Watch where they hesitate.
For the invented teleport scene, a successful page lets the reader discover the elbow at the intended moment. Detailed machinery can add atmosphere, but it shouldn’t announce the answer early or hide it altogether.
Keep the rough with its comic speech bubbles until the final page reads smoothly. If the lettering only works after you explain which balloon comes next, return to that rough and move things. The reader won’t have the script beside them.
