I'm no artist, nor could I figure out how to get the top texture to rotate with the sides, but the tank texture is impossible to work out which side is which, a small arrow pointing at the front as shown above would be a welcome addition.
Obviously would need to rotate when using the wrench.

I feel like this issue is on the wrong repo as this mod does not have any rotatable blocks

ahh balls should have been on TechReborn,
If you could move + reopen :)