More weather effects practice.
Yeah, should cut back a bit on the wrinkles. Real hands aren't that wrinkly.
Source: my hand
Actually, they are. Source: my hand which I modeled and referenced.
I blame the rain. Water wrinkles everything! D:
Hands do have "wrinkles", yes, (though if you put your hand under the rain you won't have tons it's not like you've stayed in the bath for 3 hours), but something is wrong with these wrinkles. They are "vertical", when you cup your hand, the most prominent direction these wrinkles go are the "horizontal" ones ( the horizontal lines of the palm that become more pronounced as you cup your hand), if you see what I mean.
A picture is better :