I really like the style a lot. Just three minor suggestions (and Farlander's comment about the perspective on the table is seconded):
The yellow looks great, but the orange doesn't look great (to me) with it. I would suggest making the sofa and chair quite a bit darker, if they must remain orange.
I think the minimalist shading on the walls is very effective, but you haven't done the same to the other objects, so they look slightly out of place. This is particularly true of the sofa, probably just because it's big. Maybe you could shade the sofa the way you've shaded the trim on the walls (make the top parts brighter, lower parts darker, etc)?
The details on the desk against the right wall are almost impossible to see at 1x zoom. It looks like maybe there is some shading variation in the color of the panels that make it up, but it's hard to tell. I would recommend upping the contrast there until the shape is obvious even at 100% zoom.
The yellow looks great, but the orange doesn't look great (to me) with it. I would suggest making the sofa and chair quite a bit darker, if they must remain orange.
I think the minimalist shading on the walls is very effective, but you haven't done the same to the other objects, so they look slightly out of place. This is particularly true of the sofa, probably just because it's big. Maybe you could shade the sofa the way you've shaded the trim on the walls (make the top parts brighter, lower parts darker, etc)?
The details on the desk against the right wall are almost impossible to see at 1x zoom. It looks like maybe there is some shading variation in the color of the panels that make it up, but it's hard to tell. I would recommend upping the contrast there until the shape is obvious even at 100% zoom.