The armor and effect ( some sort of spell I assume) look really nice. While I don't particularly like the bright background directly behind her, I do think it brings light to the image that is needed for it too look good. I would have liked to see something that brightened up the background with a bit more detail, like a magical forest filled with odd sparkly lights (you were halfway there) but I'm not the artist and I still enjoy what you did. Aside from the background (that I'm always mentioning, don't change nothing, you do them just fine without my constant nagging to fulfill my own dream for your art) I think the leg positioning is kind of awkward and is lacking some detail.