Animation is bad and way too stiff, why is a roblox character the thumbnail? I dunno what's happening, a guy appears, he flys over the other guy, then he just randomly spawns out an arrow? People randomly start appearing, also is his gun shooting? I see no effects.. This was bad.

Interesting topic, however the pivotal points are maybe to slw or not enough emotion. Try adjusting the area of the keyframes, maybe that will help. Also, try adding some sound effects instead of just plain music to add more emotion. (Believe me, I need to start this too.)