The exit, i don't know where am i and im scared :C

Most guys would reply with, “Nothing.” But she seems the type that wouldn’t believe that for a second.

The perspective on this piece is perfect. It’s such a great use for her to be looking down on someone, sets the mood this artwork shows.
Shading is exemplary. Perfect use of the lighting.
Her glare is perfect on showing her mood, you’ve really nailed that.
Other smaller details, like her eyelashes, or even her nose ring, are really well done. Things like that add a lot.
Again, along with the perspective, the anatomy has a very caring attention to detail.
Nyx was well thought out on what her personality and how to demonstrate that with her expressions and pose.

Again, really nice work! You’ve got a good eye for details.