Sounds like a classic childhood friend moment; I'll try mixing it with the Magic Artist storyline around February. It'll work great since I didn't have much of an ending and the whole imagined artist made Shiroi seem a little around the bend. Adding you in just makes her a bit lonely.
Meanwhile, I've been browsing DeviantArt for ideas and tips. I found a some new palettes and "Bases." Basically, people provide bald naked line art of character for other people to dress and style. They're good to practice inking on since I'm not so married to the original lines.
Credit to PockyPixels if you're in the area and are interested.
(I'll delete it if you guys are against bases)