Upload & Sell: On
Good job on the composite! This is something I've wanted to explore much more than I have to this point. One of these days.
Overall I like this, but...
I agree with the shadow comments. Not sure what the right answer is. As it is, there is this hard, dividing line drawn by it. Maybe a less opaque shadow?
The part I'm seeing is the balance of the comp. As it is now, to me it's all a little loose and I don't quite connect. However, when I scroll the window to cut off the bottom 1/5 or so of the frame placing your main subject much closer to a traditional rule of thirds intersection it becomes much stronger. To me a tighter comp gives a stronger sense of connection which better matches the scene.
Like I said above though, well done especially as a first attempt.