Finally, I found one that was isolated enough to avoid a busy background. They are usually in clusters
Stack of 10 images, manual bracketing and assembled in Zerene Stacker
Canon 7DII + 180/3.5 + tripod. no flash
f/8, 1/320, ISO 640
Canon DPP4 for RAW conversion, PSCC, minimal processing as this image is as captured without any leaves or any other distractions. Texture and clarity improved, Topaz sharpen