Soren - eyes transformation

Dear MrAfton - my friend on FlightRising asked me to draw his original character - the psycho bunny Soren.
Soren has this curiousity: when he gets into crazy mode his eyes go one black with white pupil and one white with black pupil.
MrAfton did not ask for any kind of animation /because I didn't even mention I can do that/ but I wanted to give it a go as I've done blinking & transforming eyes before.
The setting frames to time is 24 frames per 0,25 sec. //which I called medium speed//
Did black & white versions for comparison and variety.