I'm not sure if you need dodge and mobility (although dodge is supposed to give you like +1 AC, and mobility .. well not so much since u'll have tumble anyway) are much useful.
[Deleted Imp unarmed strike thing, an inside informant told me this is creature weapon, so won't cause AOO!]
and maybe take toughness, or maybe some weapon proficiency (martial / exotic both if you can fit them in) / heavy armor (these are very useful), instead of well imp KD..
[If you can fit in Spell focuses, like Transmute for example, for massive long and massive buffs to str/dex/con from aura of vitality. its like +8 or so.. (+6? I dunno tbh, check at pocket! ^^) for like at least 10 minutes with epic trans focus
Or if you want, you could focus Divination for +3 ab / ac (I think), and drinking true strike pots to hit]
(normal focus, greater focus done in pre epic, and epic focus post-epic)
[Also, I hear u don't need to focus unarmed strike / epic focus, as it's included in the shape. This true?]
Also for the starting stat, if you have not much Charisma use (other than some + skill points/ lvl 4 bard spells are quite useless at this point), maybe add to con as well, u wouldn't wanna have like 200 hp when unshifted. [And I don't see a point in going 14 dex as well [fixed DEX for Dragon]. I guess 13 was for dodge and stuff, but if u r dropping it, i guess you won't need it.]
For pre epic, you lose 2 ab from druid and bard levels.. so if you could do like 19 druid 5 bard 16 PM .. so go 16 druid 4 bard pre epic, that'll give you 2 more ab than what you have here I think.
For energy resistance, I guess if you go Fire dragon, then acid would be useful, but a lot of times.. green dragon would take care of it, so perhaps take sonic or something, or other elemental resist depending on what items you have.
I dunno what kind of AC you will get but with shield + PM, you should have pretty decent AC. I would prefer Epic Warding cuz I think the creature attack while Epic Warding on will negate any damage reduction, though I am not 100% sure. it should go through pretty much any soak. (but then again, this sounds more like a tanking build rather than hitting)
No epic prowess btw? I guess u can either go EP or Armor skin (provided that u took heavy armor feat pre-epic) --> [I guess if you drop EWF, you can take EP and Armor skin! (or heavy armor if u couldn't fit it in Pre-epic]
You'd only need 40 tumble I think! maybe 9 or so perform for fun bard song
I think max UMD is 25, but please check with others!
GG GL HF
[Sorry, this is very messy!]