Series idea 2

Another idea I thought of is one being about a big tree with animals living in it like it was a hollow tree house/flats, ground floor, middle and roof. So I thought of the characters being a red squirrel, owl, rabbit and mole. I would want the series to teach friendship, so kind of like Pepper Pig where they will have an adventure every day. Yet again in stop frame

I really struggled to come up with a style of character that they could all look the same, but in the end I finally came up with these characters below.