Building in a town

While maintaining your client-prescribed camera view can you use a wider lens to get the whole building in the frame? That would really help the composition. Also try to use the camera correction in the vray physical camera settings (click the button that says "Guess Vert"). The model could use a little enhancement, which will help the rendering. In your rendering the stone appears to be as thin as a coat of paint because as it turns under there is immediately a different material. Try to give the stone some substantial thickness. Even if it is really just a veneer, it should still have visible thickness. For extra realism you could vray displacement modifier to give some dimensionality to the stone. If you do, then in the vray displacement modifier use "3D Mapping" and click the "Keep Continuity" button. This will allow the stone to turn corners without breaking at the edges. Finally, at the base of the building you should probably have some paving (concrete or stone); especially where there are any doors.

thanks andrew to your comment i'll work on it

The balconies need some chamfers, or the edges rounding in the texture. It's too sharp. There needs to be some separation between where the brickwork meets the wood too. And some bump or displacement on the brickwork as it's very flat. The background image looks like it's been blurred a little? Or you've tried to vignette it? I think the sky is too sunny and blue to go for an atmospheric look and feel. I agree with the foliage on the balcony, it's much too bright.

thanks for your great advices !!!

Yea perhaps what the other poster says goes with my thoughts...which is the grass on the balconies seems very bright. Too bright. The over all composition is pretty nice. Just mess with your levels and contrasts to fix the over all darkness of the scene or some thing.

its to dark for my taste and also the stones on the balcony look very huge.