People who ask for critiques, but don't really want them! I mean, come on, I KNOW how to use the sandwich effect, I'm not going to destroy you. A lot of people seem to only see the negative chunk in the middle and none of the compliments. I work very hard to give fair words!
Funny, I just did a journal entry similar to this. After being on Deniant Art for two years now ad being exposed to the art of others, I've formed a few "pet peeves". I could go into big detail on each one, but I'll narrow down my list and simplify my reasons for disliking something.
(In no particular order)
1: Unoriginality. People that just create poorly done "OC's" based off of some fandom or a concept that has been done millions of times before.
2: Ponies. MLP. Their target audience is little girls. Not people that are teenagers or anyone else who's age is in the double digits.
3: The Sonic Fandom. Sure, I have played a few games back in the day, but I'm not a huge Sonic fan. Seeing them everywhere on DA... I'm sick of them.
4: People that produce nothing but terrible art over and over and complain by saying "I wish I could draw better" ,"Draw like so and so." etc. If you want to get better, stop being lazy, get a sketchbook and PRACTICE. You will get better over time. Don't be afraid to try new subjects and mediums. Don't be afraid to make mistakes - you learn from them.
5: Bad and Exaggerated anatomy. I can understand with beginning artists, good anatomy of ANYTHING cannot be learned overnight. Get a sketchbook , an artist doll, a model to pose for you, or go to a figure drawing class. Over time, you can improve. However, people with a bad sense of anatomy and no desire to practice - will never get anywhere. I also dislike exaggerated anatomy which goes for what I like to call "boulder boobs" and extremely thin waists. This also includes any form of unnatural body enlargements - inflation or others weird fetishes . Just Noooooo.
6: Porn. I could go on and on about this one - but that would be beating a dead horse so I'll just list the basics. Nudity doesn't really bother me - I've taken a few figure drawing classes for my illustration major that consist of drawing the nude male and female form. However, you will NEVER see a model bent over with their legs spread apart to show their insides. It's a bit sickening to see photos( mostly poor quality) of a nude girl in a sexual position revealing every part of her lady bits and labeling the photo as "artistic nude." NO. Just NO. This also goes for complete sex pictures.
7: Badly shaded art. Or unshaded. No sense of establishing form or a light source. People that use black and white to shade and make highlights. That's a no no.
That's just some. I saw this topic in the forums and I couldn't resist.
I think if you want photorealistic or hyperrealistic paintings or drawings or digital whatever you'd most likely need a reference photo to take from. I have yet to see someone who has achieved a hyperrealistic or photorealistic artwork without some picture similar to their final piece.