Well, with Flora, I batted around a couple different nature-related names but kind of wanted my first two characters to be named matching (Flora and Fauna, who would later be named Cirrus instead) so I settled on Flora. Niche, well, I really made the character around the name, I guess. Niche sounded like it would be a good name for an OC and I felt like a kind of semi-grumpy semi-dorky monster poodle would work well for it.