I’m glad they are helpful for your project! The free mushrooms pack is apart of a larger side-scrolling bundle that comes with several other enemies and tilesets, but they are lacking enemy portraits for now.
I do have a set of enemies for top-down games that all have portrait's as well as 4 directional movement and attack animations in the Aesthetic megapack. You can also buy them individually if you are only interested in the enemy sprites. All of my packs are viewable on my profile if you wanna check them out!