Woah, hi there! First of all sorry it took me such a long rime to get back to you, i dont look at dA much these days (oops) but thank you so much for asking, it is completely fine for you to post colored versions of the drawings! Unfortunately, I don't currently have more of these in the works, but yeah i agree it would be awesome if something like that got made xD
Thanks again for commenting, i hope!! you have a lovely day !