Design Critique / Suggestions

FelineWasteland

Feral Catboy
Defender of Defoko
I'm creating new box art for my UTAUs, since the most current images I have are from like two years ago. In doing that, I also want to improve on their designs, but I feel like some of their silhouettes / general designs could use some sprucing up.

For reference, their old box art can be seen on this page.

Sketches and rough silhouettes of new box art:
B1eaJbICMAAdiNR.jpg:large

B1jxIdkCMAARddv.jpg:large

Left to right: Katsu, Toshiko, Hiro, and Daichi.

Any suggestions and / or critique to offer?