I'm really liking the composition and the character is really coming together. I think I see the composition work already showing progress in your pieces!
I did a ghetto trackpad paintover of the places I would keep an eye on. The wing on the right of the picture looks like you are exaggerating the curve, perhaps for good design reasons, and I did a markup in purple of where it felt like it might would go if you weren't avoiding the beak.
There are also a few places that I would watch for tangents, marked in blue. Where the wing is on the edge I think you've cropped so it won't make any weird tangents but you'll want to make sure the feathers sweep out in long lines I reckon. The foot is also near the edge of the page ; again working right now but I like to keep an eye on things like that. Same for the spear.
As usual, ymmv. I've been doing more "Atelier style" oil and gouache painting for the last year and so have gotten used to designing things to stick well out of the page or stay well within. Framing makes you need to watch for different tangencies and I'm not used to digital yet to feel like I can correct anything later or add some canvas space.
I'm really enjoying seeing how your pieces are coming together and learning a bit vicariously. I may get brave enough to post some myself soon. XD Maybe I'll even straight up copy your inspiration and illustrate an old character.