Hey! A comic sounds amazing. Honestly, whatever you feel comfortable doing and completing. Since it will be posted to social media, however you want to format to make sure it looks how you want, it is up to you. We don't have a length limit or anything similar for art. If it comes time to complete the submission form and all of your pages don't fit in the file upload, reach out to us via email and we can handle it together. We can't wait to see your comic!!