Hi timothy,
I've modified one of the goat (science goat) with more lighter colors to make it more kid-friendly #48.
If you like this modification, I can continue to work on the other characters.
As you might know, designing character illustration (especially 4 characters) extremely time intensive. So I just wanted to make sure that I'm on the right direction before I go any further.
However, if you need totally different character with more cute and simple goats, I'll leave these characters and try to create another one with different style.
Just let me know what your thoughts.
Thanks!