Nicely Done
Sorry it has taken me so long to get to this one, I really meant to get to it sooner, but you know how life gets in the way some times. So lets get started, shall we?
One of the best things of this is definitely the lighting. You have done a pretty spectacular job. Much like your halo piece, I have to admit that you do have a very solid grasp on lighting.
The Pose is nice. I think it works well for this piece. At first I thought it was a little bland, but I the realized that it was very fitting for the piece. And then mixing it with your strong lighting and good coloring made the pose and piece.
I would also like to mention the robotic arm. I think it was pretty well done. I think for the arm itself . I like the synthetic muscle and the structure. Very good job. But the hand, sadly the hand isn't as well done as the arm. I think you cold have gotten a little more intricate and detailed with the hand.
And this is the part where I have to point out a couple of things that aren't so good about the picture. I'll just try to be quick about it though.
One of the big offenses is the cut off of the legs. You have the characters abruptly end, and at the knees none the less. This makes it seem like the characters have no legs
The girl's arm that is extended is a little long. I know you know anatomy and proportions, so I can bet you know the arm is off. But I felt it should be mentioned anyway.
I noticed that the Android's thumb seems a little off. The shirt under it seems to be lacking shading.
Anyway. I think you have a very solid piece. I hope you do well for robot day.