Here's a guitar that I modelled from scratch using Blender 3D. A friend and I are playing with a concept of making it easier for people to learn guitar and we needed a base model to start with. I used it as an opportunity to learn some Substance Painter - a tool that enables texturing (i.e. adding surface details to a model).
Here's the same model but with texturing made with Substance Painter. The software enables you to give an object realistic details such as dirt marks, finger prints and scratches.
Here's a before and after of the same guitar but with detailed textures applied. Next I plan to learn animation in order to illustrate how a guitar tutorial might work.
You may have seen a similar image to this on my welcome screen. 1980's aesthetics have always appealed to me. I tried to capture an eighties feel through the objects I chose to model and textures applied.
I'll be publishing more work here shortly.