Honorable sheikh, may Allah protect you, what is the guideline regarding the limits of a man's enjoyment with his wife concerning her entire body?

The guideline is that he does not approach her from the back.

And he does not approach her in the private parts during menstruation.

Otherwise, Allah said: And those who guard their private parts except from their wives or those their right hands possess, for they are not to be blamed. But whoever seeks beyond that, then they are the transgressors.