I think the idle animation is good, but the pause he has in his breathing either needs to go, to be more like your avatar, or it needs to be more subtle. It looks kinda weird with the pause in there in my opinion.
As for the jump animation, I think i'd give him more hang time, right now it seems like he could barely jump over anything. but it's still a WIP so maybe you already realize that fact.
In general I'm loving everything in here, you've got so much talent for this stuff. I want to see a game out of this! You've taunted us with so many mockups and loveable character designs. Give us the goods already!!!