Sorry to bear bad news, but the grain in your keys are in the wrong direction.
If the cracks open up the keys will split right along with them.
This is the one time cross grain is desirable.
Yeah I know, I just used what I had laying around. Walnut wasn’t wide enough to turn the other way. I was just messing around and practicing some things I hadn’t done before. Thanks for the advice.
Jon, you should watch this video. Good points about the grain orientation of the bowtie relative to the slab to keep it from pulling apart. "The grain is running with the length of the bowtie to give it strength".