Hey, first of all, thanks, that's really sweet of you to say so. <3
Honestly, the main reason I don't share that stuff here is because I already share it on the CCDB, which is the main place I'm active in the Cats fandom. And honestly, by the time I've uploaded photos to photobucket and posted them on the CCDB and sometimes my facebook, I just don't have the energy to go through and post them on here as well. Also, the majority of my costuming is collaboartive, and whilst I always credit people, I'd hate for someone to look at a photo here and assume it's all my own work. I'm much more comfortable sharing those photos on a community like the CCDB where we all have an understanding of the costuming and make up process than in a much wider and infinitely more public one like DA.
Mostly though, I'm just lazy!
Thanks for your kind words though.