Hi Omar
The material are good, nice house! I think that the render need more contrast and the camera distortion look weird. You could use lens shift on the physical camera to that. Beside this the image look good.
Best
Hi Omar, very nice amigo, I like the car paint, the a. Although I would suggest to consider changing a bit your Field of View or maybe use the shift lens of the vray physical camera to correct a bit the vertical lines of the buildings.
A very nice render
agree with the lens shift comment. Specifically, you should try a value of +0.1 or +0.2 since the distortion is mild. Otherwise, the render looks very nice. Maybe you can try giving the windows a little more life - perhaps some glow from inside, or maybe a more blue reflection. Somehow the gray just seems too flat.
Andy
it looks great bro, i just strongly agree with the comment on the windows, maybe something other then the gray, (sky, interior lights, the trees the house facing etc).. and also i been wondering how i could get my vertical lines to be straight on my renders, somehow they were always on an angle and it really bothered me, now i know how to take care of that 
thanks
definitively improved, your galleries are always impressive, maybe a few exterior lights in case you do a night shot..
Hey guys, i just received some help from Fernando, he actualluy corrected the first image, and the other two are mine, using what i just learned. hehe, thank you again brother, it was my internet after all, but i already fixed it
It is always my pleasure! The render look great!
Excelente! Siempre sera un placer poder ayudar.