Technique: Multiple advanced geometries with varied materials
Learning: Learned about 6 different geometry types: TorusGeometry (donut ring), IcosahedronGeometry (20-sided polyhedron), OctahedronGeometry (8-sided polyhedron), TorusKnotGeometry (twisted tube), DodecahedronGeometry (12-sided polyhedron), and TetrahedronGeometry (4-sided polyhedron). Each geometry accepts different parameters for customization and can be combined in a scene using different materials and positions.