Sorry for taking so long to answer. I totally forgot and only saw it now.

So the lightning. I'll tell you to take my opinion with a grain of salt, since I know little to nothing about art or drawing, but I'd say it looks a biiit cartoonish. I'm not exactly sure how to explain it. Maybe a bit more realistic-looking would do the trick for me, but again, I don't know how you'd go changing it.

The picture is still a great one, mind you, the lightning is just a small detail that just drew my attention.