When I get a fav, I try to return the favour. However, even if I like the style and enjoy browsing the gallery, there are some things that irk me and might lead to no fav at all.
So here's the list of my pet peeves:
too many of the same
If you can't be bothered to chose between very similar pics, why should I do it for you? I'm not talking about themed galleries or two different variants of the same image, if both are different enough to be different pics. I'm talking about twenty shots that are nearly the same, that portray the same thing without offering a diversity in angles, lighting, mood etc.
watermark
I have nothing against the dA