Another nice tool(requires an android running gadgetbridge, or official client until we get the libpebble install apps/watchfaces function in maebble) is the DIY watchface maker.
http://www.watchface-generator.de/
It is an easy watchface maker tool that you can use at the website or go to the github and run locally.
Now you can have your favorite meme or design a most functional watchface for yourself. Analog or digital with date, an image battery and bluetooth status ets, super customizable.
Here is an example I threw together:
http://www.wf-g.de/wf/20200315/n900_and_pebble/
Have fun!