both are fine. i do say i love to see some done in color, but mix of both is best way to go. also thank you. i been wanting to see how this series will end. cause i been with it since org manga. hopefully we see end to it and other chapters that not been posted yet. ^0^
you could add her but don't make her main focus since she more of less the oboro type character mainly enjoy what being done to Lima, to joinning in on the fun. her images should be with lima in more of submissions form. to her being dom in the scenes.
Haven't quite got the hang of generating two characters together yet. If a model of Elma did appear, I would feature her in her own gallery. Or probably create images of her to use in that Dragonblood rewrite I've been doing. Though really I haven't been too eager to update that gallery in a while.