Heya,
I'd keep the first one. The shadow isn't an issue to me. It's part of the foreground context. Would it be nicer without? Maybe. But the amount of work needed to clone it out would take away from the image because for it to look natural you'd have to remove it from the shirt too. I would just keep it as it is, warm it up maybe, lose some contrast, and just sharpen the eyes and call it a day.
I wouldn't keep the second. Looks like it's your shadow with your elbows up. Maybe I'm wrong. Plus it just seems a little soft like focus was missed.
Very best,