After many hours and days spent Googling, I fortuitously happened upon the Moon Turtle Mood Journal.
My aim was to discover the most simple, uncomplicated, aesthetically pleasing rendering of a mood tracker, which would translate to a tool I would both enjoy using and stick to (for a reasonable duration). I found all of these attributes in the Moon Turtle.
I feel it has just enough detail to be at once useful and not off-putting. I do not become overwhelmed when I open the cover and look at the pages.
– Jo, Moon Turtle: A Mood Journal