I really like the overall feel of the image, it’s kind of gritty, but still warm. And the robot seems realistic too- like out of some old sci-fi, kind of like The Iron Giant. The old man’s expression is priceless- puzzled and thinking. The background also leaves nothing out, I especially like how it’s in the basement. The only thing I’d suggest is making the halo effect on the stairs a little crisper, but maybe that’s just me.