Very nice coins, the german one reminds me of how much I want to buy some reichspfennigs. German coins are pretty cool to me in general. Canadians are always fun to find, I get them a lot here; I actually have a commemorative Canada day quarter. I don't have many foreign coins.
If you photographed them on a plain background; grey, white, black (not all three combined, LOL), it would show them better. I haven't looked at any of the new Canadian quarters lately, but the new portrait of the queen looks like a bad cartoon compared to the older ones. And, you may wish to soak that 2015 25¢ in acetone to see if you can remove the fingerprint. Thanks for the post.