Haha, didn't the local people think it was weird to have someone taking pictures of the plants?

Not really because many people take pictures for their social media profile so I guess they are habituated with this attitude. It used to feel weird 3-4 years ago, people used to stare at me but not anymore...

do you retouch them with any program?

Yes, I have used adobe lightroom to create dark and matte effects...