These look great, I do see the PDF being only a single page right now so you might want to check that (I used Adobe PDF reader, Google Chrome, and a previewer built into the file browser I use). I can at least use the PNG files right in my Obsidian notebook right now though.
Here's how they came out. They look pretty damn good I think. 
I got them printed on standard linen cards with a glossy print, with a tin to store them in.
The company did message me to make sure the back was oriented correctly. As pictured here you would flip on the long edge.
Total cost was about $23 shipped. Like 1/2 of that was shipping. But they came out great.