Hello Rosario!
Looks good!
Though there are some things I think you could work with some more.
1. More high res bumpmap for the floor.
2. IMHO the POV is too low, it makes the armchair to look of scale.
3. The chair in front of the desk looks wrong, it feels like if its going to tip if you sit down on it and dont sit totally straight up.
Except from that I think its a nice render you've got here!!
I like the carpet, the ceiling is great and you've got a nice amount of details here!