Great start.
You need to diffuse the light. Hotspots will develop easier when you get the light source closer to the subject.
Speaking of which, dont be afraid to get your lens closer to the subject. People are interested in the subject and the more you fill the frame the easier it will be to edit.
Does your camera support Focus Stacking??
I had a wee go at editing your example:
View attachment 277056
See the hotspots on the spider and in the background?? Look at the eyes.
Amazon has a whole selection of macro diffusers for very little money or do what I do and invest in a good roll of white kitchen paper and some sticky tape:
View attachment 277058
Its not stupid if it works.
CHEERS
JBO