I judge the comfiness of your head!

[Amaterasu]

Hmm, Usopp has the great advantage of having curly hair that functions as a great cushion! Although there would be much more potential if instead of keeping 90% of that hair tied back into his afro he left it on top of his head, to add to the floof. His big hat could also be worn by whoever is hatting him, providing extra shade, and the goggles' leatherband is ideal to support a pair of hands/paws to stabilise the weight. The head shape and such is standard human, so I give this head a 6/10.