1: None of the draws have a particle texture assigned or being detected which means you get giant pink particles every time you interact with the draws which is a little distracting.

2: The left and right side of the front face of the draws is are reversed. I reported this on the main mod a while back and it was fixed but the fix clearly didn't carry through when you revived 'extras'. :) jaquadro/StorageDrawers#347

Here's a quick picture showing both issues. Both issues confirmed without any other mods installed, just shown here with my textures enabled so its easier to detect. I put blue circles around the second issue to make it clearer.
https://www.dropbox.com/s/jok2cxzk2n56s4n/2017-06-05_22.57.20.png?dl=0

Also if I can also sneak in a question, what's the purpose of the textures inside textures/block/biomesoplenty/base? The base and trim files in there don't seem to be applied in game anywhere that I can see.

Still present in the latest version.

STILL PRESENT. It's been literal years.

The textures inside /base/ are for the texture tool to automatically generate all the normal textures.