Haha, I just had to pop in to say that the lightning flash looks really awesome, you seem to have that special effects gene working for you!
I do, though, find it a bit weird how he just transforms into the bolt; without even leaping into it/no pose change at all. It makes it look slightly like he's teleported by some other force than his own.
Also, don't hesitate to try and continue to improve his run; I really think you could learn a lot from it! I'll be back with more critique later O: