any ways to improve the cast shadow?

[gusty nest]

i do also think it looks strange if the background is just white, but i do not want to make a full background and just want to keep it minimal

OOH i have an idea

instead of keeping the light source on top of kafka, what if the light was near the viewer so it also projects onto a possible wall

i also really like the little planetarium displays that arknights character sprites have, where it's just a chunk of the background