@sleeperer That's coming along nicely. I would like to make 2 suggestions, based on what your lamp is doing.
The light that it is casting would not, I think, be quite as you have shown it.
The top of the wardrobe is higher than the lamp. Therefore the light cannot fall onto the top to illuminate even the front corner. The shadow against the wall is perfectly plausible. I would suggest leaving that and putting the whole of the top in shadow.
The second suggestion is about what happens in front of the lamp. In the snip below I have enclosed an area by a red line. Because the lamp is behind the edge of the cabinet, that cabinet would itself be in shadow and would likely cast a shadow on the floor as well.
Likewise, the lamp is behind the front edge of the wardrobe, so again it would not be able to illuminate anything like as much as you have shown. Like the cabinet, the wardrobe would be throwing a shadow onto the floor. I have shown the approximate shape by a green line.