3D set of keys

This is one of my old work I did in Blender during the january-2022 but I started making it in the end of 2020 when I was beginner, so I made lots and lots of Attempts and renders through this period until I achieved this result in 2022.
Through this project I learned a lot about hard surface modeling and how to uv unwrapping them correctly and how to minimizing stretches in the textures then baking the texture into certain maps, also how anisotropy shader and other glossy shader work and give the keys some really good looking especially that one which has a cylinder shape and learned other good information about material and lighting and other things in 3D world in general.