Hey @ ranchanakiriyapong31
This is a super cool submission. I like the report layout, very analytical and detailed. I’d suggest adding a table of contents for easy navigation, but other than that stylistically it was great!
My favourite aspect was how you dug in to identify the most endangered species by observations: very helpful info for the conservationists.
Some suggestions:
- You say “There was not much difference between on-status species and species of concern”. It’d be a great addition to do a statistical analysis (maybe ANOVA or chi2 depending) to put an exact significance value against that assertion.
- One final piece of the puzzle is a high level view tying observations, species type, conservation status status by park together. This is a big ask since there’s so many categories I know, but it’s a good exercise. An example could be like below:
Hope some of these suggestions were helpful 
Please do check out my submission as well and offer some critiques! Bio-diversity Project submission