it's not really blurry, it looks like some sort of digital artifact.

I think they are jpeg artifacts, lol i notice little things, and proberly see things a little diffrently than you photogrophers because i am a Graphic Designer.

English please?
Or French?
I have not the slightest idea what you guys are talking about....

because ( hahahah i started an sentence with because hahahha) ...

ok its like this: jepeg and other formats need to calculate wich color a pixel should have by doing this "errors" could occoure thats what they mean sec i make a pic

ooohh!!!! Thanks!!!
Ya I noticed that when I did the selective coloring on m other pictures, when I zoom them to 200-400 %, it is more easy to notice...
I guess I have to do with it... or is it my camera or the picture itself or is it like that for everyone?

Keep in mind that the more editing you do and the more you save a .jpg - the worse it will look.

If you can shoot in .tiff or some sort of RAW format, do that - edit it and then save to .jpg last.