R5 600 f4 III 2x III EF/RF adapter HH
1/3200 f9 iso1250 (auto) +1 ev
DPP4 PS2021 20% crop NR to BG only, lifted shadows a bit, unsharp mask
This was as far ETTR as could go with small blinkies on the top of the head.
Missing fine feather detail which I expect can only be fixed by getting closer.
Maybe also a limitation of the lens combo for the R5? No micro-adjust available.