As someone who has traveled purely **only** to be among friends as escapism from the stress of family, I am personally fond of this one. The first picture is really cute, and does just feel like a group of friends hanging out :,)
As for critic, I don't have too much to say unless you had something in mind you wanted to improve! Apart of me could say something about the glossiness of their textures, but I feel like in this context it adds to the scene making it feel light a bright sunny day : )
Maybe I'd play with the normals of the grass roots so they'd blend into the rest of the land, or have a seamless grid grass texture (maybe something like out of MySims?)
But I like what you've made, it's as if its apart of a bigger story which is always a good sign of something great : ) Happy you made this and are apart of this jam!
Oh and also, haven't heard of ucupaint before. Thanks for mentioning it during your process!