I will do a professional comic or manga page

Yes, you can. To activate it, there's a toggle for commercial use in extra section (When you are ordering this gig). Please make sure that the quantity is equal the amount of pages you order.

I do every theme/genre (For example: action, fantasy, horror, furry, full robot/mecha, gore/violent, ecchi, or even NSFW stuffs). Only for gore and violent scenes, if it is too extreme or vulgar, I might decline or suggest an alternatives.

Is the amount of figures (character/object) I can provide in 1 page. A same character/object are still counted as 1 even if it's appear twice or more in that 1 page.

Yes, generally you can reorder the gig after the first 20 are done, and so on :) But for the best result and experiences, I would suggest to order 1-3 page at a time, but you can show me the complete scripts and concepts in advance, so I can still catch the whole vision before working on the page.

Yes, of course. Therefore, I shall be released from the responsibilities and any damages that may occur from the final product, including but not limited to infringing on any third party's copyrights, and I shall not be held accountable for any liability.