The lighting is very nice. Good job. There are a few details that bug me though. The edges of many objects, like the stool and canvas, are too sharp. Some filleting would help a lot. And the draping of the cloth is not very natural.
You should browse through different groups on deviant art, that do similar kinds of art as you, and, then when you find a group you like, join it, and submit your art to them to display there, and you will get a ton more views.