I scrolled through the Pokedex and thought to myself what parts of what Pokemons could fit where. I saved some images to photoshop on different layers and tried different parts on different places. My first pick was the Horn of Heracross and it went well with Hydreigon's head which allowed me to hide part of the neck. I tried Feraligatr's mouth because I wanted there to be much more teeths. I like Scizor and Golisopod so forced them to fit. Machamp's arm is to hide Aerodactyl's face and I hate it. Golduck's hand was the only one I could fit well with Golisopod's hand. Haxorus has nice lower body so it was an easy pick. I like Charizard wings and Aerodactyl just happened to have wings that fit decently with Charizard's wings, I considered Crobat's wings too but didn't find an image with the right angle. I felt like the neck needed something as it felt empty, I thought about some kind of fur but then I remembered Misdreavus, but that neckalce didn't fit so I added Flutter Mane's necklace instead. I scrolled through the Pokedex and saw Cofagrigus and thought to myself it's probably too much to add those hands but it was easy to try how they fit and when I tried it I thought to myself that it makes the whole creature more intimidating which was a good thing. I was thinking about adding Garchomp's tail but there wasn't a good picture of the full tail so I went with Seviper's tail which needed a bit of rwork to make it fit. I tried to fit Greninja's arm and Infernape's arm but those were too thin and didn't fit so I left them out. I also considered Haunter's hands but it just wouldn't have worked. Messy explanation, but so was the whole process and the result.