Ok, I can see one major flaw here... with the way he's sitting and keeping the foot in his opponents armpit the opponent only needs to bridge him off instead of pushing him (the first armbar transition he shows) and grapevine his legs and he's got an achilles lock (or even a heel hook if he wants it). Otherwise it kind of looks like a drunken-monkey version of ju-jitsu
Could be nice but you're really giving up the legs.
Heh, just noticed something: "Opens his chokes for a collar." Ok, I'll stop now...