Look I aprechiate the food but I was thinking of doing this to fill in some you know? so free. That also means later I might become busy, which might mean I might not be able to do this for a long time. (depends on pages aswell) but if thats okay with you and i'm your only option thens its okay.
If we do, do this. About the sending, you mentioned photoshop files and yet you do the backgrounds oneshot? What i'm sudgesting is, well for you to draw them on different layers but if thats too much then could you draw the characters on one layer, duplicate the character layer. Then draw the bg on the original layer? This would help when colouring, and then send the characters and background together. Doing it all at once would be more effeicnt, also get the page over with instead of keep sending and resending etc.
I also did I the flat colors for another comic cause I was bored, she didn't ask but I did it anyway with the png upload, lol.
so basically heres what I can do, she hasn't uploaded the rest but you can see a good amount. https://tapastic.com/episode/297623 so if you dont like the colors on that then well nice knowing you.