This wasn't solely a matter of his emotions, there was also a magical factor involved.
It was a magic oil painting with the ability to stir the dark desires at the bottom of one's heart.
Not until Gaven hastily rolled it up did the charm completely subside. Without a second thought, he tossed it into the Portable Dimensional Hole, and not just it, all the tapestries and paintings were collected as well.
He wasn't claiming them for himself but was preparing to later study and critique them with a critical attitude.
Then he carried out a thorough search of the entire room, leaving no stone unturned. Although he found a plethora of erotic devices, his real target was nowhere to be seen.
"Treasure, treasure, my lord, we have found treasure," came the excited barking of the Gnolls from outside.
Gnolls were also very sensitive to riches and equally greedy.