Thank you for the update. It is as I feared - not as easy as it looks.
For info: I found the spider low down, just above ground level within wet, ash and maple woodland, on lime rich clay soils. Other than in periods of prolonged drought, the undergrowth generally remains remains damp and lush.
Next time I shall try an 8-diopter lens on the front of my macro lens and attempt to get that detail.