We included some pictures as reference, but we wanted a white rather than a dark one (or very light can -- like a silver or a light sort-of-silver blue, or a gold, could be considered with white lettering).
We wanted our logo featured in it somewhere, but we dont necessarily care where -- some passes had it center, some had it lower, some higher. Can do watermarking stuff ala the new red bull cans if you want. That'd be neat.
We liked a combination of vertical and horizontal lettering.
Tagline is "Brighter is Better" and descriptor-tagline is "A caffeine-free way to keep up."
There's no dieline or anything vectored so no need for anything too detailed -- that's for our canner to decide. All we need for now is a general rendering which will convey first impression -- color and placement of art on can, that we can change/swap around based on each spec (mainly color variations).