Cool work by LR Jewellery Design

I was doing a bit of Googling this evening and came across the work of LR Jewellery Design (http://www.lrjewellerydesign.com/) in New Zealand. These pieces are made from a mixture of acrylic and resin and I would LOVE to know how these are made. I definitely have to investigate acrylic further. I have some sheets I was going to saw into animal shapes but somehow that just doesn't cut it anymore!