Chinese coin idenfication

Hi I have several Chinese coins and I would like to know if some of them are fake?!
Firstly a Yuan Shi Kai dollar (or “fatman dollar“) i hope somebody can let me know how to compare the real and the fake coin.



Second is chinese dragon coin. im hope i can study from all of you how to detect the counterfeit coins.


Hope some one can help???!
Thank you.

Pretty sure the dragon dollar is fake, the lettering on the front is too fat
https://en.numista.com/catalogue/pieces34861.html
the fat man dollar is also fake. The placement of the characters on the front is all wrong and doesn’t have the last character meaning made
https://en.numista.com/catalogue/pieces3849.html

Thank for your result and hope i can study more from you .

Both are indeed replica/forgeries