Nice, I know you only used that picture as inspiration, but to make this look more like it, I would perhaps make the wall dark grey, and the light blue, it would give it the more eerie look you are going for.
It may be a tiny bit to bright, but I think you did great!! Maybe you could tape a piece of clear-ish blue tissue paper over the lamp to give it that faded blue glow that I saw in the picture that you were basing this off of. Just an idea. Great job!
Looks quite good, it's just a bit to bright I think. If it were darker overall the "lightbeams" would look even better, at least that's what I presume :)
But even now one can easily see that those two guys are cool as ice ;)