Revisiting old characters

These two characters are from an idea for a TV series I thought up along time ago and have thought about recently. The drawings on the end are ones that I drew a year or two ago and the middle drawings are the ones I did today, trying to flesh out my idea of the characters. But I'm still not quite there yet with the character designs. I expect a lot more drafts.

Eventually I want to write a script for a pilot episode and then, maybe, if I feel like it will go any where, I would like to animate it.