I've meant to make a Portal 2 fanart for a REALLY long time now ever since I completed the game. As you can imagine though drawing robotic characters can be insanely difficult with all their intricately designed metal parts and wires etc.
Due to a slight issue lately with drawing (slight artblock) and the need to practice my digital painting approach I ended up semi-tracing this image I found on google:- [link]
No, I don't think it's "cheating" just to it lay out there before people jump on me with pitch forks for comitting such an act. Infact, what I just done here is probably the equivelent to someone colouring an already drawn lineart from another artist. Only it's a little more complicated since you're not relying on already drawn lines but working with a 3D rendered scene from a video game.
One thing I learnt through painting this though is how simplicity with colours can be pretty effective, there's not always a need to add too many different tones while shading with one colour. Which is something I tend to do a lot and find myself having several coloured tones to deal with when digital painting, instead of in this case about 2 tones for each colour used (roughly). Still learning though!
Also, I just love GLaDOS. I dunno why considering how much she wanted to kill me but there's just something that lingers about her character that makes her so awesome. Especially after completing Portal 2.