Two-sided CNC cut beer caddies (or totes, whatever you call 'em)

Hope you watch the video. I could use all the feedback I can get :)

Cut on a Shopbot Buddy BT32 with a 60 deg. v-bit and 1/9" spiral upcut end mill.
Made on a pine panel from Menards. Sides are aspen wood. Bottom and dividers are 3/16" ply (underlayment I think).

https://youtu.be/ulx-6uoqztI

Attachment 31761

What was the basis for choosing wood for different parts? Nice work btw

Thanks. Fair question. Simple answer: I just had it all already lying around the shop from previous projects. Just saving money and getting rid of scrap :)