I hope you don't mind if I
this, there is much to be desired here and I will express it. ^^
This is the first Phoenix portrayed in anime style that I actually like:
Even though in many legends and myths, the Phoenix is mainly portrayed as male and in this piece the eye lashes, that look like beautiful phoenix-pheasant feathers, give this bird a more "feminine" look in-which you did a swell job at.
That symbol on it's forehead and between the eyes I'm not familiar with, what does it mean?
The flame illusions beneath the wings are mystifying, I felt drawn to them as much as I am drawn to the Phoenix overall. Although fire is an element of destruction and the fact that in most legends; the Phoenix symbolizes life, rebirth, and/or flame, the somewhat serene fire matches the other traits quite well and how you drawn it expresses an excellent balance of serenity and destruction.
The feathers, especially the tips, which fairly obviously symbolize fire itself, you did an awesome job at it, this is probably my favorite part of this art!
The kimono-clad character with this giant bird of flame is pretty mysterious, in fact, I can't even tell if it's male or female. Either way, the red kimono matches the rather fiery and mystifying theme very well despite some other colors standing out but a little more colorful variety wouldn't hurt at all.
Unfortunately, I cannot comment on the background as I have a mixed opinion on it and rather be direct.
This Phoenix is amazing, and I'm not gonna lie as it's pretty obvious, the bird is my favorite mythical creature nor am I some popular critic, I just wanted to express an in-detail opinion.