Colored in from a Concept Sketch.
I personally like how Wood Kirby's design turned up. Those vines in the back are also part of the ring base that makes up the hat.
It's interesting how each elemental ability has a different shaped gem on the front of the hat. Following that, Wood gets a pentagon.
Kirby + Golem (C) Nintendo/Hal Laboratory
Wood Ability and Wood Golem were designed by the KCCh team.