I like how you've taken a chance with the unorthodox perspective, and I think that it works well. The composition is nicely balanced--for situations like this where the figure is presented in a way we're not usually accustomed to, it's important to allow for some breathing room so that there isn't too much visual chaos. So I think the plain floor is suitable here (as opposed to something busy like grass).
I think the rendering could stand to be a little more fleshed out, particularly on her jacket and skirt. I know from seeing your recent Lone Wolf piece that you have a good understanding of lighting, so I would've liked to see a few more dark shadows scattered about in here. I like how her arms turned out and am especially drawn to her shoulder piece. I also think her hair is nicely drawn and shaded, but again it would benefit from some darker values in there.
Given the perspective I'd say that her head is slightly on the small side, but it's not too noticeable and certainly not detrimental.
One thing that I think would've been nice is if you had vignetted the illustration a bit at the top. I keep finding myself looking at her skirt and bag, rather than moving down to her head, and I think by darkening that area (or blurring it?) you would bring the focus more to where you want it.
By the way, I know it's more for stylistic purposes, but I really wish you'd let go of the "transparent hair over the eyes" thing. It tends to flatten the head I think, and in this particular piece having the hair partially mask the face would've helped with her lounging/vulnerable expression.
Regardless, it's a solid piece of art man and I'm glad you finally did a Final Fantasy piece!
I like the colors quite a bit, and the shading is well done. The pose is nice and fluid (though it's amazing how she can keep her balance like that).
The background texture is a nice touch, though I wish the darker parts would overlap with her more -- whenever there's a space that just perfectly shapes around her body, it flattens out the image a little bit, getting rid of some needed depth. If anything, you can just soften up the darker parts to the left of her face, and it would make the background seem a little less constricting (put your finger over it and see for yourself)!
One other thing is the belt -- it looks like it's intersecting her leg a little. That, and the left half of her stomach, which could probably be in shadow, make her midsection look just a bit awkward, though it's certainly easily fixable.
Very beautiful work! The play with warmer vs cooler colors directs attention to the focal point quite nicely. There is a great sense of depth, with the background dropping back as it should, while still maintaining connectivity to the foreground.
There is a bit of confusion in depth on the right side. Initially I saw the forest/vegetation as an overhanging cliff in the foreground, but after noticing the buildings underneath, seemingly in front, I'm not sure what to think.
Is it supposed to be in the background, farther away than the structures? If so, I think a slight reduction in chroma would help push it back.
I think it would work better as a foreground object, though--it makes the piece more inviting, as if you've just turned a corner, only to see this majestic castle nestled between two cliffs.
The other thing bothering me is the cropping at the bottom. With the castle's design, my eye keeps being drawn to the bottom and off of the canvas. The bit of light at the very bottom-center grabs too much attention. If you put your finger over it to cover it up, the focal point instantly becomes much stronger. See for yourself.
I really admire your architecture work and look forward to seeing more. Keep it up!