watercolor pussy willow branches set. hand drawn wooden sticks for card, invitation. spring easter decoration

april background bare bark blossom botany branch branches bud bush card catkin celebration cuddly decor decoration design drawn easter floral flower fluffy fur fuzzy gray growth hand holiday illustration invitation isolated march natural nature paint plant pussy pussywillow season set silky simplicity soft spring stem stick sticks symbol tree twig watercolor watercolour white willow wooden