That’s it, i’m using cycles, and te option “depth of field” is disabled. And my final result looks like the next image. I still need to clarify materials, lights, and something else, but what worries me most now is that I don’t get a focused result. Also this is going to be an animation at the end, so i don’t really know if rendered like an animation would change something.
If someone could help it would be great.
Ignore me, I’m just trying to figure out where I can ask my own questions. Hopefully writing something here unlocks a badge for that or something 
(we’ll start with the emoji badge I guess).
Thanks for answering! I’ve tried what you said, and it’s not that, I still don’t know why it comes out so blurry…
Share the .blend-file (delete what you don’t want to be shared) or it’ll be guessing game ^.^
How much of this is textures? It could be texture filtering.
Thanks both of you for answering, it was the resolution in the output propierties… so obvious that i’m ashamed xD
