The materials are related with the render motor, so i will explain them here.

The illumination was very important for the material aspects, such as the skin and a good metal simulation. Based on the HDRI lighting I achieved some very convincing results, such as the metal reflections – such realism shows in the whole scene (Fig.17 – metal material parameters; Fig.18).

Post - Production

For the final image, I composed it in a simple way in Photoshop:  adjusting levels, making colour corrections, and using Z-depth rendering for the depth of field effect. I then worked on the main areas with additional layers for glows, blurs and some sharpening (Fig.19 – final image).