It's hard to tell from the pics. I see an embryo in the last one, but I can't tell if there is any veining going on in any of them. The top two don't look like anything going on, but like I said, it's hard to tell from the pics. Take a look at this thread: https://www.backyardchickens.com/t/...g-candling-pics-progression-though-incubation it'll give you an idea of what you should be seeing on what day.
Are you candling shining into the fat end? I'm sorry, I can't really tell. They look totally different from the fat end. That's where you see all the action. If you are, then personally the first 2 look clear me. Some possibility with the third. If not, try it from the fat end and see what you see.