It looks like there are already some small red l.e.d. lights inside his arm, so if ady wanted to add a little something to the shot, he could probably just make a couple of the lights blink once or twice and that would be enough. The whole glowy blue neon thing, while cool-looking, seems to be too much.
I agree that the coloring needs to be tweaked to match better, and maybe fix the whole vein/fake looking prosthetic thing.