everything else in the room belonged to the good guys : the altar on the opposite wall was a carved chac-mool that honored the rain god ; the winged serpent motifs on the walls represented the creator god , kulkulkan ; the carved and painted rainbows up near the ceiling were a reference to the goddess ixchel ; and the ball-game scenes painted on the clay pots she had been examining paid homage to the sun god , kinich ahau .