It rained through the night.
With my Macro settings not up to scratch, I went on Youtube and found a video of the settings for Macro.
The gentleman explained about the basic settings in a very simple way.
I followed his advice, and went out and did a few practice images of a rose in the garden with rain droplets on it.
The image is cropped around 60%, but there are no worries in cropping with 61mp on the Sony A7r4.