Is this a difficult 3D model for printing?

Hi, everybody. My experience of 3D printing is limited to printing simple objects and things and I’m curious how difficult it is to make a similar 3D model?
https://www.artec3d.com/3d-models/napoleon

Can anyone tell me where to find a good guide for beginners?

Hard question to answer.
Depends what you are going to print with PLA is a very forgiving.
You will need to use supports.
You can search Youtube for ideas.