Hi there
I think that colors and mood are great. The composition draws attention very well to the area where the contact between the woman’s hand and the animals takes place.
Personally, I would add some detail to this very area between her right hand and the head of the dinosaur-kind-of-animal. This area appears somewhat blurred to me, which is disturbing, as it is really the centre of interest in the picture (I do not think this is intended)… Her right hand is somewhat hard to make out, and seems to be rather small too. The animal’s tentacles almost dissolve into the background, maybe you could add some contrast here. Also, I think, it could help to have some eye on the reptile’s head, so that it gets a bit more of a face\character (unless, of course, the opposite was intended).
Yet I think you shouldn’t add too much detail to the background, because it would start competing for attention with the foreground. The contrast which you draw between a clearly defined foreground and a blurred, luminous background produces a wonderful effect. At most I’d add very, very subtle shadows of other plants.
A wonderful composition. I love the feel of the animals creeping out of the dark of the thick forest into the mysterious light that sheds through the trees.
hope I could help
Chris