I agree; the gem animals get more and more ugly as time goes by. Perhaps they're making all gem types ugly as sin now in hopes people will stop breeding for them. After all, the gem creatures bring in the most $$ in forests and it more than likely takes away some profit from them (since buying coins for expansions/food/obstacles is an option in FFS that I'm sure people that are desperate take advantage of... but multiple-gem owners don't need to).
I'm so disappointed, as well. So much possibility in the Dark-Gem hybrid. Completely wasted.
I was looking forward to the Dark-Gem hybrid being released the most out of all the Gem animals... so this... thing... is the biggest disappointment I've seen in FFS yet for hybrid animals of any type. Even the Frankenswine was prettier, and that's saying something :\
This is NOT what we meant when we said we wanted more mythological creatures