I really like this! What's appealing is it's not so much sinister and creepy, but rather startling at a first glance and then it goe into unexpected and "different". I love the colours and detail you used, it makes the girl and deer at an initial glance seem spooky and off putting, but the longer you look at them, they seem to be otherworldly, but just doing their own thing (though the blood on the shirt raises questions! Hah). I guess what I'm saying in a nutshell is that I got a "just because they're not softly coloured and cuddly it doesn't automatically they're evil" vibe.
Not sure if I'm making sense, but I just have to commend you on this excellent piece!