There is no melle defence (except for god mode), you might want to put some in since AT's with defence powers are melle oriented.
Oh yes, I forgot to put resist melee for Animal Reflexes. 
A total of 14 of my nerves have been harmed in the making of this post...
More original, but you should state what ATs it is for in your description. I assume this is intended to be a defense set for scrappers, brutes, tankers and stalkers? Which power would you replace with Hide for stalker version?
I think most players would like thier mez protection earlier and a bit more complete. a set that relies on toggles probably needs protection from stun and hold as well as sleep.
You seem to have an excess of powers with a fear effect.
I really should do something about this signature.
Animal Instincts, a defense powerset that I'd like to see implemented in the game, This powerset focuses on senses and inherent animal awareness. This is supposed to be best fitted for Animal based characters such at insects, mammals and reptiles, this powerset it based on super reflexes and willpower, ive managed to come up with the following so tell me what you think
ANIMAL INSTINCTS
You have control over your primal animal instincts and the ones of other animals, by focusing your senses and awareness, you are able to manipulate your body into a quick and savage state
1) Awareness (toggle: +Def Ranged, AoE, Fear)
You become more aware of the dargers around you with your incredible hearing, this makes you able to predict the upcoming dangers and overcome them
2) Nurse Wounds (click: +Regen Health, +res Toxic)
You become more intact with your healing instincs and learn how to treat a wound without medical equipment, after which your Immune system will become more resistant to Toxic attacks
3) Enhanced Sight (Toggle: +Acc, +Preception, +ToHit)
You hone your ability to see and sense things around you, your attacks become more precise and accurate while stealthy foes can be spotted due to your incredible smelling ability
4) Incresed Stamina (auto: +regen End, +speed, +Recharge)
You Are naturally faster at regenerating stamina than average men. your speed, endurance regeneration and power recharge have slightly incresed than ussual
5) Animal Reflexes (Toggle: +Res Ranged, hold, sleep, immobilise, confuse, disorient, AoE)
You Become more agile than normal, by doing so you can evade and dodge upcoming attacks at great speed and escape from holds effects
6) Primal Mind (Auto: +Res sleep, fear, confuse, Psi)
You naturally ease your mind into a more primal state, your savage mind will repel you from mind altering effects
7) Howling Call (click: PBAoE foe Fear, -toHit)
You let out a large wolf call that scares the foes around you and they will become less able to assault you from thier fear, stronger foes may be more resistant o these effects
8) Savage Rage (Click: +Acc, +toHit, +Dmg, PBAoE foe fear, taunt)
You let yourself become an inhuman savage beast and stike fear into surrounding foes or intimidate them. you greatly boost your own damage and accuracy for every foe around you, only up to 10 foes can be effected by this power
9) Beastly State (Click: +regen end, +regen health, +recharge, +Def all, +Res All +Speed, +Jump. Afterwards -Regen End, -Recharge)
You unleash your beastly side and become an inhuman killing machine, by doing so you regeneration and recharge rates have peaked and your running speed and jump hight have incresed, afterwards you will be drained of endurance and unable to rest for quite some time.
A total of 14 of my nerves have been harmed in the making of this post...