tutaj masz problemy, z 'a', 'the'
In THE FOREground ON this pictures (dlaczego pictureS - to jest l. mnoga -moze literowka) I can see a man.
He is wearing 'A' white T-shirt, navy blue shirt and jeans, I can't see his shoes. He has dark hair and small (zle slowo - lepsze 'little') facial hair.
He looks rather young, maybe even 18-25 years old. (a takim wieku sa rather young?)
IN the background I can see 'A' window with louvers, maybe on the outside IT is a (po co to 'a' tutaj) dark but I DON'T know.
In the middle of THE pictures (picture - powinno byc l. poj) THERE is a computer and something (something? nie - to znaczy 'cos' - chyba masz na mysli 'somebodys' fotos, notebook, pencil and headphones.