The blue match ups on the outfit - man that looks fantastic.
I love the background with the Janet in it!
(the outfit that paeoniaceae commented on below was this one:)

The color coordination. holy--
[font=monospace]
the overall muted-natural color palette, as well as the legs
I love the way you’ve managed to make a giant eyeball absolutely adorable! Those arms pair great with the legs!
[tot=moody]
The colors are very soft and monotone, but still eerie and I love that.
That backdrop is so creepy and cool!
the combination of items you've used for your avatar really makes the eyes stand out and pop! so cute!
The layering of the background fits together really well and so does the face layering!
(The HA that Valiska commented on below was approximately this one:)

the flow of the lines from the top of your avatar's hair to the bottom of your avatar's "tail".
This is the avatar I was using when I posted this: if I've changed since then, please rate this one:
Outfit Not Found
(Thanks - I worked really hard on that Soundwave avatar!)

my favorite thing about that HA is how the shadow/dirt on the face makes it look like they pushed off their goggles onto their forehead right after something exploded
The cat holding onto your HA's broomstick is EVERYTHING. So adorable! ♥
I like the way you coordinated that set with accessories AND your background/foreground items. That set is really cute and I've seen a lot of avatars wearint it, but yours is the best outfit I've seen with it so far. The whiskers are extra cute.
This is the avatar I was using when I posted this. If I change before someone comments, please rate this avatar, or I may become very confused! Thank you!
Yep, that's the avatar you had on when I commented. That's why I always include the avatar I am posting with in the body of my post, because if I'm playing on these boards I might change more than once a day.
And you are right, that is exactly what happened to poor Mesothulas--boom, right in the face! Fortunately he's having a mad science baby that has been engineered to be invulnerable to just about anything so the baby will be fine.
(Mesothulas is usually he/him; don't be fooled by the fact that he's pregnant with Ostaros, his and Prowl's mad science child. He is very gender. He has all the gender. All of it. I wore Mesothulas for most of Morostide in honour of the fine old tradition of Halloween mad science--it's the gijinka design of a friend and they were so stoked that I made an avatar of him.)

it's very elegant and gives a lot of character, i love that in an HA. you can imagine there's a story behind this icy mystical cat person :)
my HA as of this post: Outfit Not Found
you have an anti-Functionist status and a deceptibrand in your sig! ;_; this makes you cool! I tried to friend you but alas.
My guess is you'll be amused that the icy mystical cat person is a Shattered Glass Ravage gijinka from the SG side of my fanfic-verse. (She's an influencer and a disseminator of disinformation, not an idiot who can't shut up when people are trying to work).
What I like about your avatar is the way you layered the screwdriver set and glasses over the skull (which I'm guessing is a skin since I can't tell what item it is.) The effect is really cool. I would also have not thought to use blush on a skeletal avatar.
This is the avatar I was using when I posted this. If I've changed since then, please rate this one:

The theme and color coordination is fantastic. There are so many well placed details and I love it so much.
The color of the background makes the rest of the avatar stand out nicely!