This is actually well presented. The body and hips along with the arms are actually well made, including the legs. Although the belly button is in the correct place, the tail appears to be coming out of the butt, which would be incorrect because of the tail bone ends horizontally aligned with the belly button on the average person.
A suggestion to fix this is to make sure that the base of the tail is aligned with the belly button next time, so that it doesn't give off the appearance of the tail coming out of the butt.
One other problem are the hands, which are a bit too small for the body. A suggestion is to remember this prank; "If you're hands are larger then your face then you have cancer." while also remembering that most hands when spread out manage to cover at least %70 of someone's face, you can even place your hand on your face to prove that this fact is true.
Other then that, I had to take a little off of Originality is because there are a lot of bunny girls running around on DA and off of DA, plus this didn't really give any impact since I didn't see any other thing that it was suppost to show other then as a practice sketch, perhaps.
Sorry if I seem too harsh or bland, this is actually my second time ever writing a Critique.
This actually helped very much! <3 I will practice my butt tails LOL <3333333
And I can completely understand the originality going down because of it, Sadly I love bunnies because I have one, I am just waiting for the trend to go away =3=