Excellent work! The composition is perfect and the scale model render is a bright idea for this kind of work.
The only thing I dislike is the cloudy sky on the last renders. On the first images you have a clear sky, blue gradient, which blends very nicely with the 3D. Nevertheless, this is just a personal opinion. Maybe the majority will disagree with this…
Very well done, congratulations!
wow!
great work u got there!
the model-like render is awesome!
8)
really nice! 
ooh, veery nice!
i agree with the sky issue, i would go for a less saturated gradient, the second image is perfekt(but ofcourse that is a photo background…), maybe even add a little grain/noise
the model render is awesome, might it be even better with some sharp catmull AA? or it might just be jpg compression that fools me…
great work!
The third one kicks ass. good job
Fantasic stuff! I would use camera correct on the second just to keep the
vertical lines parallel (unless it is to lean like that).
Hi bpozas,
nice renderings 
Only one thing looks not 100%, and that is lighting of bottom of the slabs, they should not have so much light, looks they receive bounce, or maybe color bleeding from somewhere, and I can not see what is the source, so that makes me wonder. Otherwise you are the man! well done!
Regards
Srdjan
nice one bpozas, i think the images are lacking a little contrast
I agree about lack of contrast. Just apply auto levels in Photoshop and renderings will be perfect.
wonderful job,
two things i would do different, get rid of that Porsche /it spoils the view/ and vary a bit rendered/concrete finish on the building ,
otherwise it is a perfect picture.
Very nice. the glass in the tower could be a bit more reflective though…
Its also very refreshing to see renderings of high-rise buildings embrace the natural condition of the 3 point perspective.
Mna i do love those balsa model renderings. Well done.
John
hi good work I like your wood model, can u share this texture 
nice job!!
Always like your work and this is no exception.