What I would do- Drop the cloak of elvenkind elvenkind to a cloak of displacement, keep the resistance bonus. At higher levels, miss chance is usaully better than an AC. 20% miss chance is good, but the 50% is better, if a lot more expensive.
I'm not sure where the +4 transmuting is coming from on your fists, but an amulet of natural attacks (Savage species) might be worth looking into if you don't already have that angle covered. Add the valorous enchantment for double damage on a charge (I think you can do that, double check the rules first, it's been a while since I've looked that one up, I might be wrong).
Find some way to make your unarmed strike piercing damage (there's a feat PHB2, I think, can't think of any items off the top of my head). Creatures that fly can make diving charges, which deal double damage on a charge if they descend as part of the charge and attack with a piercing weapon at the end of it (another thing to run by your DM first, if memory serves the winged template doesn't specificly state it, although it is in the description of flying movement in the SRD).
A ring of freedom of movement might also be worth considdering.