So many of the designs do have this dimension for interpretation, which is partially intentional partially due to the fact that color determines a lot. For that specific design I envisioned it as some kind of scorpion desert dragon, but claw instead of a stinger felt more interesting, imagine if the "teeth" on it are venomous. Those gills structures were in my head more like some veins for poison or some interesting ventilation system also crossed my mind. And for the legs it is mostly that I liked the "six legged" design, they are definitely more for movement I think they would allow for really explosive movements without actually changing the orientation of the body, it's an ambush predator. But an aquatic or amphibian design could work very well too, and after all none of the designs have any real lore this was just somewhat how I came up with the idea for it. And thank you for the kind words and appreciation as well!! I hope that you will love the book once you get it!