@Sophie-Lawson Would be awesome if you did! I did start this for that exact reason - to face my fears and push myself to do something new. I had started to feel that my art was going stale and thought some kind of drawing challenge might make things better. But no existing challenge really interested me at the time, and I wanted to start with something I knew I'm pretty good at drawing.
In the end, it worked out well and gave me lots of new ideas and opportunities to try different styles. So it's great for discovering new ways to draw and design your characters!
None of the cats have really turned into full original characters (yet). Even though several of them got names and basic personalities - like the Catatollah of Rock n Rollah with its rainbow mohawk and Ciaran the russian blue drinking white russian.