You! You my exceptionally perverted child, are amazing. On the entire DeviantART website, I could never find a better picture than this that, in my standards, captures a humanized Celestia for was she truly is. I can see the clear cut of her beauty that is the sun itself, the bringer of life to a planet of many, not just Equestria but also several other realms. Viewing this picture, I can witness the contrast between a alicorn Celestia and a human Celestia, both drawn and animated superbly. Yes, my friend, 5-stars all around. You have made a sci-fi writer like myself proud to assimilate a character like Celestia into my fanfictions.
"Come on you target, for far away laughter. Come on you stranger, you legend, you martyr and SHINE!"
Not being an artist I can't critique you technically, but I can tell you my impressions, and I talk about what I like. I love this! Frankly, I'd like to favorite your entire gallery - but it's easier to pick one piece and use it as a link. This is the work I picked.
You nail Celestia's expressions. As a human she is eternally young, but motherly - the smile is perfect. As a pony she is serene, but a little sad - it's lonely at the top, and this is a ruler who can make hard choices. You have drawn characters that I think I would enjoy meeting.
I also love that you gave her a gown to match her mane instead of just a white one.
Exceptional. Her Human depiction here perfectly encapsulates her magic, grace and patient wisdom. Love the addition of the subtle smile, even her eyes reflect it. While she's meant to emulate a motherly quality, I can't help but find her just a bit sexy as well.
Absolutely beautiful! Your portrayal is exactly how I would imagine Celestia were she human. She looks kind and loving, wise and cheerful. At first I thought here rather ample breasts made her a bit to sexualized, but looking back now, it doesn't feel that way. It just feels like it's adding to her beauty without attempting to be erotic. Almost seems in-character, somehow. And her dress is very neat! Not to mention her hair looks wonderful.