I don't know if somebody suggested something like this before but if you need more winposes why not have Freezer put on his scouter, push the button and have it play his TFS theme. (FREEZAFREEZAFREEZA FREEZA) while he smiles demonically.
I know you might have to ask for permission but you could give it to him like that sunglasses winpose goku has.
Lands charred black, rivers boiled,
crops and wells alike despoiled.
Mountains leveled, forests felled,
Footprints of the beasts of Keld.