let e go right off the bat and say the bunny belle is adorable. incredibly adorable. the most adorable thing i have ever seen, and my cat gave birth to two liters of kittens so that is saying something.
i have never before seen an image of sweetie belle as a bunny, in fact, i have only seen one other pony turned into a bunny so far (fluttershy, and she was just in a costume) other than your own images so that is very original to me.
i like the light shadowing done in the image and the overall design of bunny belle is ingenious. the impact was just her adorableness, so it should be getting more stars but there is a five star limit, it deserves 10 trillion on that regard. throw in the fact it looks like she wants a hug (which i want to be the one to hug her, who wouldn't, am i right?) and those cute as a button eyes with the small smile, this is one of the best images i have seen so far on DA.