I'm still working on Grumpig! I know i haven't updated or posted anything about it lately but I just started on it last week. I apologize for not being able to get it done when I said I would.
Current WIP:
Given the time sensitivity, you made a bold choice to give it a background and additional Spoinks in the background, even though the Grumpig alone would work just fine. That said, even though you said it's a WIP, don't speed up your work process to the point where things get sloppy. The feet seem to be at a very uncomfortable position despite that it's trying to relax/sleep, and there are other small details that together shows that you made some hasty calls (orb on its belly is flat, arms are oddly bulgy despite having a constant thickness from shoulder to the wrists, small head). If you're rushed, don't overcomplicate it. A Grumpig in a battle ready/cute pose would have been enough, I'll take a general approach done well rather than an advanced picture falling short any day of the week.
Had to finish Cloyster today to get it off my mind, so here you go!
Actually liked your earlier WIP better, mainly because the bubbles weren't crowding the Cloyster completely, but also because the additional Cloysters around the edges doesn't add much to the view, having empty space is fine as long as the main focus is adequately detailed. The biggest concern is without doubt its face, the place everyone will look first. The eyes are crossed which gives it a derpy look, and the white "brows" makes its eyes even further odd, so just leaving its face
the same as its usual one would be the safest but also best approach to take imo. Also, remember that the horn is pointing out of the space above its head, and not directly behind its head, see the official art for reference.