First thing: Your work is wonderful. Count me as a fan.
Second thing: With regard to female klyros there are many options to indicate female gender other than breasts. Here are three semi-random possibilities. Wider hips to lay the large eggs of complex big-brained klyros. Longer, perhaps flowing, fins in brighter colors. Proportionally longer arms and legs and a more slender frame. I like breasts, but they just seem wrong on the intelligent pterodactyls that are klyros. This is an ongoing topic of discussion among some of the klyran players. Some of us hold strong opinions on the topic, others less so. The klyros you drew is beautiful in any case.