This game has great potential, here are a few suggestions that I think will make this game one the greatest vore games in the world.
1. Add bigger creatures, like Giantess, dragons, dinosaurs, etc.
2. If possible, add an internal view for bigger creatures whenever or if they are added. And maybe full tour if the creature/giantess is big enough.
3. Maybe add different biomes into the game, so each biome has its own unique set of creatures.