Nudity can mean many diffrenent things for both males and females.
I do draw nudes often, and have come to the following conclusions:
In the attractive sense, nudity in masculines can show strength, boldness, courage.
In the unnactractive sense, it can also show shame and cowardness. In both ways, it is
exposing everything, whether that is something strong or weak.
In the attractive sense, nudity in feminines can show innocence, beauty, shyness,
question/mysteriousness, simplicity, or even lust.
In the unnactractive sense it can show pride, truth/deceit, bluntness and directness.