The style, weather gritty and dark has nothing to do with the ability to capture emotion. Lots of artists use various styles and still portray emotion the way it should be, the the beauty of having a unique style, making it work.
This thread is totally making me feel like posting some stuffs.
I really like all your demon drawings <3 they are ... just really unique like that dog/dragon/tailed/winged thingie <3
also the fairie you posted a page ago.. that one was my favourite. The colours were just really superb :3