Cam's Pixel Art

[Domobot]

She's pretty cute! As far as shading goes, you need to think about where your light source is coming from and how shadow would be cast on a object. For example, the highlights on her chest suggest light is coming from the upper left, so you should shade it something like this:

Keep in mind that different materials need to be shaded differently so they look convincing. Glass is shiny, metal is reflective etc. I also changed her legs a little, they looked kinda funky. Granted I'm no anatomy expert (or on anything, really) and I probably made them worse, so hopefully someone who knows better than I do can help.

And avoid pure black outlines!