Oh, this is lovely! I really like the sketchiness of the trees paired with the luminescence on the faeries. It's got a very calming, ethereal sort of quality to it (and black and turquoise are always great together).
This looks like it must have been a pain to sketch out...and oooh, look, you even did little reflections in the water! And little ripples! And I love the way you drew the branches/roots extending down into the water, as it the water were actually very clear, and it's only black because it's incredibly deep, or something.
This is all so very pretty...I really like this...
This is a really beautiful piece. It's like a dream.