I draw them more deer-like. I make them the tallest of the Eevees for this reason. They can range from creamy colors to green. Their ears and tails can be different leaf shapes.
Also like Sawsbuck (and other grass type Pokemon) they change with the seasons. In the spring they're just more vibrant in color. Pink leaves is stupid.
None of these are characters, but I'll be willing to sell them as characters for $5 each.