This is a paper pieced rabbit. My theme seems to be “Rip it out” and do it over again and again and again. Or put another way: practice, practice, practice. The entire rabbit paper is 8″ x 8″. 
Here is the ear section. This ear photo is close to actual size which is 2.5″ from the bottom point to the top midsection. Those pieces are VERY small and at this point, I have had to tape the pattern to hold it together while I rip it out over and over to get it right. It all seems very backward to me, but eventually I should learn this way of piecing.
Ack! I don’t think I will ever tackle foundation paper piecing as complicated as the rabbit you are undertaking! You will be a pro when you master that pattern. I am going to stick with the easy and simple patterns like the letters for my grandson’s name on his baby quilt. https://www.flickr.com/photos/40978700@N06/8235756944/in/album-72157623625202363/
That is a very complicated pattern to learn paper piecing. I’m not sure I would enjoy anything that small. I have done a little in the past, but lately I’m favoring larger, and more simple piecing. I will be making 2 sailboat blocks for one of my piecing group members this week. Nothing like the rabbit though.
Wow, that looks really difficult!