this is a really nice vector! i like the creative use of limited colors. i hope you don't mind if i use it for one of my company's presentations. we're focusing on gaming and this picture really seems appropriate.
Great job on this! The composition is awesome, great use of the black, and the line quality is awesome. The pose of the girls seems a liiiiittle bit awkward (I think it's the upper leg) but beyond that, awesome work.