Agree with what they said, also think it should be thinner. the pic that phemox gave the link to shows how thin the bolts usually are.
That being said, I like it a lot! It looks very cool! nice sounds as well... it's a great effeckt! Somehow the cloud could get lit up more when the bolt is close, just like real lightning does...
good work!
~"I never let school interfere with my education"~ -Mark Twain