I barely see rabbit in this at all, really. The armoring is nice, and the hammer is very well constructed, but this says neither Effeminate nor Lapine to me.
For example, her shoulders look to be using the wide Hero Factory base skeleton, so about nine studs wide, right? Yet her hips use the same base, at around five studs wide. Now, from a strictly human anatomical perspective, the hips of the female tend to be wider than the male, and the shoulders narrower. The decision to use the large half round shells on the shoulders and the snug ventilated boxes on the thighs doesn't much help with this, either, as the round shells give her shoulders the illusion of greater width, and contrast the close fit of the boxes that much more.
From an anthropomorphic perspective, proportions do tend to be a tad more fluid in that circle, but not to this extent. In addition, the lengthened neck feels strange straight up like that, and the ears feel very small for a rabbit. Common real rabbits tend to have ears about 75 to 110 percent the size of the length of their head. (Roughly. I'm not a biologist.) These are maybe ten, twenty percent the length of hers? I realize you're working with the constraint of the helmet here, and I can, on further examination, see slight hints of a rabbit there, but they are very slim hints. And, in all honesty, the High Quality digital version of the helmet does not help my recognition of these features.
Color-wise, it's a bit hectic. Red, Trans Neon Green, Gunmetal, Silver, Bley, and Black are all vying for attention here and it just comes out muddled, unfortunately.
Now, that having been said, the construction of this MoC is very nice! You did a good job presenting a cohesive armoring on Kit, something the HF plates don't always lend themselves to. I must especially complement the sides, and the unbroken appearance you gave them with the small plate, combined with the wide claw base piece.
Apologies if I worded this somewhat harshly.