1) You have asked, but again, they should be around 17+
2) General clothing for most, but these two would be preferred to be wearing fashionable clothing to stand out as main characters, the designs for the clothes are up to you. I can try to get some pictures if you want though.
3) I think I should leave this up to you, it seems like you have a better image of them than me, I would probably just try to make both look like the protagonists in a normal shounen story.
4) Nothing important, just don't forget to draw a beat counter on everyone in the story unless the story specifies they take it off.
Other than this, there isn't too much. I'll just wait until you ask for some help or need me to clarify any more things since you're busy with school right now, I'll be at your service.
