Hi,
For what you want, you have to take into account what I indicate:
20211002_IMG_20210930_110423.dng.pp3 (21.1 KB)
You can also look at:
http://rawpedia.rawtherapee.com/Local_Adjustments#Example:_changing_the_color_of_all_the_green_leaves.2C_except_for_one
Edit: And too:
https://discuss.pixls.us/t/revealing-more-refined-details-using-rt/26602/5