I printed a lot of them, like she did, and have been practicing my shading techniques. I also printed her samples and have the cards I've finished handy for comparison.
Bunnies come in a variety of colors, so I'm trying different combinations. Soon, I will make up some cards with these smaller bunnies. The larger ones took up most of the cards.
I'm using Prismacolor pencils and odorless mineral spirits. I keep my electric eraser handy. It's probably one of the best purchases I have ever made. It's battery operated and you can refill the tips. I got mine at the craft store with a 50% off coupon. I use it for both pencils and chalks.