I drew myself as a March Hare a few years ago, might've been 2023, might've been earlier. I tried to find the picture again in my camera roll, but I ended up just missing my dead dog. But anyway, I remember when I originally drew it, I drew the eyes bulging out with the intent to pay homage to the March Hare from Tim Burton's Alice in Wonderland, AKA Thackery Earwicket.
If I were to redraw this March Hare, I'd probably change the way I draw the eyes. Give them dark bags underneath and a thick outline over the eyes like mascara. Make them look angry, maybe even a little evil. Kind of like the outlander lions from The Lion King 2. This would reflect how this March Hare is sick of being in the Hatter's shadow and overlooked. I'd let you know just by looking at them that they resent their very existence.