3d puzzle Frog

I've put a match box so that you could understand the scale.
There are two DWG files. Frog_original is what I've actually cut and had to adjust manually (please see the photo with 3 parts). Original design has some flaws in sense of symmetry as well, so I attach it following principle "as is". Frog_edited is my attempt to reflect these manual changes in the design. The altered parts have green colour in it. Please note, I haven't cut frog_edited so far.