Really impressive ! What about the red stamps ? I notice it’s most often a mix of stamps and brush strokes. And are the characters common with chinese in some way ? I’m learning basic chinese in last months and it seems to me that i recognize some characters
nostr:npub1tlacuxmtv2wqud9qz0ujnr4mqavmnz3ayspfj93jr40tgf2mvu6seax3y7 In 2017 I did the Shikoku 88 Pilgrimage, I am sure you would especially appreciate the kanji of Japanese mixed with the simplicity of nature. Each temple has their own goshuin 御朱印, which for me each is a master piece and memory. #photostr #photography 
Discussion
The red stamps are the official stamp of the temple, similar to a signature. Often these will use an old or unique way of writing the kanji. Also the Japanese kanji is from China so there are lots of similarities to Chinese Simplified and Chinese Traditional. You should definitely visit if you can and take a Shodo class.