Wow! That illustration of you in the kimono is so good!
I almost always don't go back to my unfinished works, but that's because I mostly deal with traditional drawings. However, once I transfer my artwork to be colored, I find myself always going back to it. So I guess, if it's digital- I think you can always go back to it when you've thought of something that you can add on.
P.S. Thanks for mentioning me :) I feel honored.
Yeah, that's the great thing about digital. I'd have a stack of papers collecting dust when I was only using traditional media. Now I'm not that stressed about picking up an old piece!