Hello and welcome @YuJun4764
Quite a few questions and I’m sure many will offer some answers.
This article is excellent and has lots tips about making a good nomination.
The Criteria Clarification Collection contains information on what is eligible as a nomination
You are nominating wayspots that MAY get selected to appear in Pokemon Go. So you need to understand how accepted wayspots are selected. ……do read and understand about the role of S2 cells and what get selected to go into Pokémon Go
https://pokemongohub.net/post/article/comprehensive-guide-s2-cells-pokemon-go/
I’ll leave others to answer more.
But do keep asking questions 