If you haven't checked out Terra Monsters, you're missing out. [link]
Here's another sketch dump of concept work I did for Social Titans. This includes a self guided attempt at doing a stage 2 for Pandemite before we decided it would be a started and have 3 stages. I definitely love Antonio Chiu's Pandora and Pandorum better though, so glad we didn't go this route. I remember the squirrel being rejected for its similarity to Moxtail. And yes, these are concepts for an approved Dolphin we have.