For customizing colors: Trust your heart, let fate decide. Also, look into basic color theory and use your art program's "select by color" feature if it has it.
Kittens! This is an excellent idea and it is now added to my "must-do" list
I've been planning more animations for this pack for a while. If you have specific requests(aside from the three listed above) please let me know as I'm always open to suggestions.
I'm pretty busy with my actual(rent-paying) job, so updates may be a little slow. That said thanks for supporting my art and I'm excited to see what type of RPG you're making!