I’m posting here the finished version, published also in works in progress. It is my first bigger project made in blender, after I have been trying to learn something about computer graphic for about a year. I know that it could have been done better but I still have soooo much to learn. The final render is made with GPU, cycles, 200 samples, 1600x1067 resolution as the original photo. I have left some more contrast than it is on the original, because I think it looks more realistic. Texturing is my main issue right now and I will have to study that a lot. I would like to thank everyone helping me out with their comments, especially harleynut97 for taking his time 
