The newest colour, Eventide, seems to be able to lend itself well to any pet it's applied to, though I have to admit it might have been more interesting had the starry pattern been restricted to the Tonu's ruff instead of also being on the tip of its head. While I understand it's more or less a patterned colourfill, it does look a bit silly being on the tip of the Tonu's head.

Maraquan is another gorgeous colour. The folks at Neopets did an excellent job at changing the Tonu into a worthy sea creature, and would help to make an excellent walrus-themed account for anyone who was interested in owning a Tyrannian and mutant Tuskaninny as well

Other thoughts and comments can be made here.