Three.js 3D website

We need a 3D website to showcase our game based on Monsters & Weapons. We can provide 3D models, but we would require you to design & optimize 75% of the models. We want to have a similar 3D immersive experience as https://totem.earth with the same amount of sections but with our look & feel from our existing website https://monstropoly.io keeping the same colours (purple & yellow).