I don't know much (anything really) about macro photography. This was just on the off chance, my friend actually pointed it out to me while I had my camera in hand.
I'm glad you are now confident in your photography, I want to try a bit of everything and a long exposure, star trail type shot is next on my list to try and learn.
You mention a 100MM lens for macro. I am thinking of getting another lens seeing as I only have the kit lens, the AF-P 18-55 VR G.
Something like a Nikkor 55-200 or maybe the 70-300? This is more expensive and I realise with the crop factor the 55-200 will be a max of around 306MM compared to FX, and the 300 a whopping 459mm!
Are either of these ideal or good for macro photography? I want to get the most out of what I buy, and I can see myself sticking with DX due to the lower cost when I upgrade my body. Unless I win the lottery, of have more income