My take on the whole "Scugerators" concept a bunch of RW artists have done before. I didn't really elaborate on it much on the tumblr upload of this, so I suppose I could do so here.

No matter what Five Pebbles does, he'll always end up as the shortest of the bunch. Moon will always be taller than him.

Rivulet would be INCREDIBLY excited to see Moon like this, no doubt. Moon's also quite proud of her little tail pouch.

NSH remains quite fashionable even in their slugcat form, and is just as prone to humor as their signature purposed organism is.

Seven Red Suns chose their form carefully, so as to allow their own purposed organism to feel comfortable around them. Whereas Spearmaster doesn't have a mouth, Suns has a third eye on their head to stand in solidarity with their own genetic mutant pet-friend.

Sliver of Straw.