Your two close up photos look blue because there isn't enough light in the photo. Can you try again and get the coin closer to the light? We won't be able tot tell with those photos.
I see some sort of doubling, but the lighting and quality isn't very good. Are you zooming in with your camera as well as using the loop? If you are, zoom back out and snap it again. Zooming in decreases megapixels. Also, spend a few bucks on a 10x loupe that has a larger window. Mine's an HE Harris. It'll let in more light and give you a bigger viewing window.
Sorry for being difficult, but you need to take straight on shots vs angled ones, the angles affect lighting and visibility. Also, you need to steady your camera so the shots are more clear. At the end of the day, however, I don't think it's anything more than MD.
