If you Google Image search "Paper trees" you'll find hundreds, but very very few are realistic. Google search "Realistic paper trees" and they start to look a little better.
These are the best I found, but it ain't easy, and they do use things other than paper.
https://www.youtube.com/watch?v=UdvwhJoYqAM
https://www.youtube.com/watch?reload=9&v=lSHC_T_w4C0
I just Googled "Paper bonsai" .... Wow, some of them are quite impressive.
https://www.instructables.com/id/How...r-Tree-bonsai/