I made an easy sticker variation.
I selected 6 colors of lemon-yellow to red, then I named it to "Autumn cube".
All face's colors are different, then this cube is normally 3x3 without similarly colors.
It looks fallen leaves colors, then I named.
Then, perhaps four seasons patterns can be made,
Green based "Spring cube" likes young leaves,
Blue based "Summer cube" likes sky and sea,
Orange based (this) "Autumn cube" likes fallen leaves,
and Gray based "Winter cube" likes snow sight.