I love the smooth, soft feel of this, and your coloring and shading are perfect! Your perspective is also very good, I love how the angle really shows off her weapon and tail, and just makes the whole thing feel much more elegant.
I just love this one! propaply the most beatiful piece of art that I have ever seen, honestly. that shading is so smooth and the colours are so peacefull making a great athmosphere, and that sword just looks epic ^-^
I also got huge inspiration from this to make a bookmark design so I tought that it makes it like a fanart (you totally would deserve a ton of them), so desided to link it back here: fav.me/d7rrsny and sorry for horrible english..