I cut two of my trees in half

I bought the two trees in the photo as flowering trees about three years ago.  They were just seedlings.  Last year, they were about twenty feet tall, and I noticed in the fall that there was fruit on both trees, but it was way up high where I couldn't get to it.  So, I figured that this year I would cut them down to about five feet and see what happens. If they're going to be fruit trees, then I want to be able to reach the fruit.  I think they are apples, unknown variety.  We shall see.