Upload & Sell: On
I agree with Karen.
You might selectively open the shadow on the head and shadowed body rather than a global adjustment, or open the shadows locally more than the global correction.
The reds look oversaturated to me.
I'd also crop a bit from the right to eliminate the vertical branches. Then see if you need to crop a tad from the left to rebalance the image.
Biggest problem with these images is getting a relatively clean shot with less shadows and, even better, fewer twigs. But nature doesnt always oblige.
Enjoy the new lens!