The collision polygon in the animation "Falling" seems not right.
Also, it is generaly advised to use an invisible rectangle sprite as your platform behavior holder and spawn the animation over it. (as in this and that tutorials)
I'm under the impression I've already seen the character's sprite. Is that deadeye's from the CC platform school ?
If so, you really should use something else as Deadeye specified he did not want his assets to be reused.
Finaly The forums C2 general and how do I are more indicated for posting support/help request topics. "Your creations" is the part where you post your working games ^^
Hope this puts you on the right beginning rails.
Welcome on the forum.