So my least favorite Shyvana skin has always been Darkflame.
:o
We can't be friends. (Bone Claw exist.)
As far as sexualization goes, Of course almost all champions suffer from this including a lot of males.
The boob window is dumb and Riot knows it, but if it sold more I'm sure there would be no second thought on if they should.
Fortunately Riot has already re-imagined DF Shyvana and it's....
[slayer-pantheon-rainbows]
https://i.redd.it/lgxekq29yet31.png
I hope that ALL her skins, Ice/DF/Bone etc. are all de-sexualized and more focus is put on making her feel like a Juggernaut at all times.
Aside from the skintight boob armor you'll never see the new DF does show promise they will stray from it.
You concept though removes Shyvanas helm and much like Ironscale loses Shyvanas core feature, making her look more like just another Anime girl rather than Shyvana. Keeping it on at all times and making the helm her horns like ALL her skins (Shyvana does not have horns on her head) recaptures her.
Also everything neck down is glorious good job, only thing I'd add is something to her right should. That asymmetry is something I truly enjoy about her.