I continue to be impressed at the sharpness of my new Canon hardware

I waited until after the passing shower to venture out on a walk near Lake Macbride. I was carrying my Canon 5D Mark IV and a Canon EF 100-400mm f/4.5-5.6 IS II USM Lens. I was looking for images of some white egrets that were usually in this area of the lake. I did find eight white egrets, a couple of blue herons and a Shallowtail butterfly (see below). This image was taken handheld around 5pm today. The image is cropped to 6x4" from a RAW original at 20x13" in Photoshop. The eyes of the butterfly are sharp, as are the antennae and proboscis. The wind was blowing a little, thus a blur was caused from a foxtail plant in front of the shallowtail.