Staying in the lines is a must, yes. You have no idea how many times I've gotten frustrated over a single pixel off. You wouldn't think even ONE MEASLEY pixel matters. It sticks out as much as if this were in the icons bin
It gets annoying sometimes, but it's the only means of posting up art that I have.
Right now I'm working on darkening Crono's lines. In case that's hard to understand, here's what I mean...
Color all of that blue. It took me half an hour to get that done, so don't expect anything for a while. When it's set, I color it a proper dark color, like black, or dark gray, or whatever works best!