Sorry for the lack of updates. I've made substantial progress since starting development.
This is my first time working with Android and many of the Pebble SDK features so I found it helpful to develop small test apps to understand individual features. This has been very informative but has probably slowed down development.
Either way I have the following sorted:
--Watch App UI--
Memory management (how much I will store on the watch)
Binary image manipulation
--Test Notification App--
App Messages (the following data is sent to and displayed on watch)
Image dithering (surprising simple algorithm, but very effective)
I now need to combine my test UI with my notification sending which will give me an early usable version. After that, notification actions, and then finally add a tutorial/setup guide to the Android App.