Your edge looks very corse. Lots of jagged edges. Look at the very edge from the side like in your pics and you will see the edge has the scratches that are in the bevel going all the way to the edge. Now, look at the Feather razor edge. The scratches stop before the edge. THIS is what gives comfort and keenness. If you were to do a hanging hair test on your edge it might cut, but what is happening is the hair is going in between a couple tips or into a notch and it's grabbing the hair.

Now, I'm still learning this looking at an edge thing and my honing is only 1.5 years worth of hands on so I'm still learning. But this is what I understand. Marty/Euclid will be by soon and chime in on what you have shown. He feels the 12K is a fast cutter and doesn't like it for finishing, or something to that affect. I like the 12K for a few strokes but then move on to a 20K to help smooth out what the 12K left of the edge. But, as I said, I'm still learning. I figure after 2 years of honing, I should be getting more better edges more often. I get a nice edge now but sometimes its hit and miss. Sure, they are keen and will cut, but I'm working on the next step. Comfort and keenness together.