Lovely picture! It is such a ordinary scene and yet a very clever comment on how modern technology affects the nature of so many relationships today, I think. You managed very well to show an intimate connection of both characters through their pose and at the same time they seem somewhat disconnected, because she seems to be a million miles away with her thoughts while playing with her cell phone and he also rather looks at the phone than at her.
Concerning the way you executed the painting, I really like what you did with the lighting. It is very natural and soft, but with a few highlights where the sun shines through the window. It also works very well with the toned down colors you used, looks very balanced to me. One minor point of critique might be, that her arms seem a bit too long, in my opinion. But I'm not quite sure there, because the longer I look, the less I see it. Might be a misjudgement from my side, based on the slightly bent pose she is in...
My favorite details, are the color & lighting of his hair, the slightly freckled skin on his upper arm (really love the way their skins differ, hers seems much softer and smooth while his skin is a bit rougher) and the pattern on the cushions and her skirt.
What I think is most fascinating, besides the beautiful lighting and perspective (of which there is much deliciousness to speak of as well), is the contrast between the connection and disconnection between the characters. It's both intimate and distant and I think very accurately describes the technological age and its affect on social standards.
The textures are touchable, the lighting is warm and casts very well, and the general atmosphere is peaceful. There's a story and makes you linger visually on your piece making it very successful and well rounded.
The only critical statement (and it's not much of one) is that with all the attention to detail to everything else, including the sheet rolls behind the gentleman, the sheet in the forefront is lacking the depth everything else has. It doesn't ruin it for me, but is distracting as it just seems unfinished there.