Tyger you really seem to love to give me tenacity pets

This time I was assigned the Blue Warp Stalker:
This colour is olny tameable in the Abyssal Depths and level 82. So you should have an aqua mount and the ability to breathe in Vash'jir.
I set out to Vash'jir, and after a quick search found my new Warp Stalker - but he disappeared. The water-stalkers (as I would call them) blink away, same thing as the ones in Terrokkar. There aren't so many of them, so I waited a little while for MY Warp-stalker to reappear (I have the imagination that something is wrong with the water down there... Ghostcrawler also blinks away *remembers a half an hour chase after the crab*). When the Warp Stalker came up again, I quickly hit tame and my new pet was swimming at my side. I named her Blueberry for obvious reason...
Appearance:
Blueberry is a really nice pet. Her colour changes from blue at her head to red at the tail. Depending of the light she sometimes even has a deep purple tone. Her blue colour is borken by some red stripes at the legs and her back. Under bestial wrath she looks almost red with a little purple. While some pets really grow quite big under bestial wrath, I don't think she grew a lot - you can see a difference, but not as much as with a Rhino for example.

What bothers me is this:

She has these nice spikes on her back and some other thing I couldn't really identify - probably something like a big scale. I marked it in the picture. The weirdest thing about this is, that it moves in and out of her spikes, when she moves. I don't think that this is meant to be, but some mistake in her animation and it relly is just unneccessary. Dear Blizz, please remove this thing, or fix it, so it doesn't pop in and out of her spikes.
Animations and sounds:
Blueberry's sounds are mostly something like hissing. I would say, they could be annoying, if you don't like loud sounds on your pet, but I like them and I think they make her sound all grown up and dangerous.
Swimming: I tamed her in the Abyssal Depths, so it was only a short swim to a very nice location to take some swimming shoots of her. She paddles with her legs and a little with her tail and looks all comfy in the water. Although if you look at her from the side, she sometimes seems to have more than four legs (like you can see in the big picture below the other two):

Blueberry's animations on solid ground are really cute. She looks from left to right, first opening her mouth, then sticking her nose up in the air like she's sniffing, then looking at her mistress:

I think I'm the first one to add a flying animation pic to my report.... We were killing water elementals in the Twilight Highlands and sometimes they shot her up in the air: she paddled with her legs like she does while swimming and came flying down almost curled up - really sweet.
Fighting and killing dwarfes...:
I did all my quests in the Twilight Highlands from the beginning until now with Blueberry. I specced her towards a tank with some damage skills and really enjoyed questing with her. She holds aggro very well, even with about 4 mobs hitting her (Thunderstomp really helps, if you skill it). The mobs had always our level (84) or even 85 and she didn't loose too much health. Of course I had to use mend pet once in a while, but it never got too bad (except the one time I accidentaly pulled a 85 Elite dragon...

but we survived that one as well).
In the pic on top we're standing between a pile of slaughtered dwarfes in the other one I'm doing the dailies with her (more dwarf killing...) and she keeps the aggro of all 5 mobs while the npcs didn't really help us. You can see in my Healbot, that I took more damage than her, ok I used mend pet for her, but she barely needed it. I think Blueberry doesn't like dwarfes, Larkania neither, so they really had fun doing the quests (I suppose it isn't fun if you're alliance, but hey, I'm horde and I'm proud of it...). So Blueberry really does a good job when it comes to tanking. I even did a few Battlegrounds with her, but I prefer my spirit beast's healing or a spiders web, or my owl catching the enemy's weapon. But her ability to slow down is ok.
Conclusion:
I love my Blueberry, she is a really great pet and companion for every solo playing I did. I like her model and her cute looks.
But what really creeped my out (and still bothers me) is this:

I logged out and saw the green model next to my Larkania (I absolutely HATE this model, it looks unhealthy and like something really nasty), shocked I logg back in to see my pretty blue Blueberry standing next to me, I logg out again: ugly green again *ugh* - just look at those creepy eyes - horrible. *shakes*
Does anybody know, if this is normal behavior of the blue model, or shall I contact a GM?
I'd love to have an other roll please:
Larkania
level: 85
Exotics: yes
restrictions: same as ever: no gorillas/monkeys, no diseased pets - and I'd really love an other famliy than tenacity now

And I'm up for a real challenge (give me something hard to grab, some rare, as you wish!)
Edit: some mistake corrected
Edit two: Larkania is now lvl 85