Better Alien/Mermaid/Plantsims please

Here, here! I'd love to see Plantsims made into a real lifestate with a skill tree and everything. I think Merfolk and Aliens could use a refresh with some more CAS (ear and body fins, gills, and scales that aren't makeup or clothing items for Merfolk, new ear shapes, teeth, and eye types and maybe some "rubber forehead alien" type details for the face for aliens), and an actual skill tree for each. Also, we should get the option to link our alien sims' disguise form to their true form so that both forms resemble each other automatically like with Vampires, Merfolk, and now Werewolves, and choose to not even have an alternate human form for our aliens as well, like we can with Vampire dark forms.