It's a real building, existing in Poznan, Poland. I need to rebuild this model for my company, and do some tests with facades (materials, lighting and some details on alucobond facades). It's took me over 20 hours to modelling, and 5-6 ours to create materials and ligthing. Lighting is prepare in HDR map, but i have to spend many ours in postproduction (photoshop) to change my pure renders to these pictures. I add noise to create similar dirt like on skies (real photos), i used chromatic aberration, matching color in photoshop, many maska on layers to preserve colors or contrast in choosen areas, i've added people. Cars are download from 3dxtras.com, textures from cgtextures.com and people are downloaded from vyonyx.com.
The first sky (violet-blue on the biggest render) is painted! It's not a photo
I will be so happy, if You write some comments and tell me if i'm close to photorealism. I can add here all three renders in full 1920x1280 resolutions if someone want to check details.

Greetings
Hris