I think the tiller looks good,for that design of bow.I dont think that is too much follow either.Yes,your humidity,will affect the amount in a wood like Hickory,which is very hydroscopic,but even then,i see much worse in other bows,so id say you did quite well.
Hickory is a great,if not the best wood,in a dry climate like mine,but in high humidity like yours,they can be a bit sluggish without climate control of some kind.Thats why woods like Osage,are so popular in your area.