Yes Yes Yes.
List them by Artist so they get due credit.
I did post this idea on the Staff Feedback forum
This is the reply I got from yellowlightman:
"For the most part, custom Valks aren't nearly as common anymore. I guess the variety in Yamato's releases and the Bandai reissues got rid of the need for most customs, though we still have some members making some really kick ass customs.
Macross Fan Works (see my sig) is open to toy customizers too, but most of the people who use it are fan artists. "
What customisers have to do is PM yellowlightman for space on the Fanworks gallery.
I still think a dedicated custom valk gallery would be nice tho.