OK, here goes, but, before I expose my own ignorance and inexperience, I should drop a reference for added authority.
Roper, Teryl R. Training and Pruning Apple Trees. Madison: University of Wisconsin, Cooperative Extension Service, 1997. A1959. 19 May 2019 http://learningstore.uwex.edu/Assets/pdfs/A1959.pdf.
I’m going to assume you ordered dwarf trees, but you need to verify this. Most trees on dwarfing rootstocks are going to have to be staked, and most of the dwarf trees sold for backyard plantings are meant to be kept below 8’ and will have to be staked indefinitely. You can drive 10’ ¾" electrical conduit into the ground 4’ deep, leaving 6’ above ground. Stake each tree thus and “tie” it loosely with ½" chainlock.
These are pretty good sized trees for transplants. It doesn’t look like you made a heading cut. I would do that now. Chop each tree off at the height of your belt. This will encourage side growth (laterals or scaffolds) from which you will select three to five next year. Next year, pick branches at least 1-½’ off the ground (or at least as high as the púcas can reach while standing on their hind legs in the snow) that are radiating upward in all directions without shading one another and tie them up or down to 60° off the vertical (30° above the horizontal). However, this year, you ought to prune off any twigs, leaves, and buds that are obviously too low to be candidates and pinch back the taller laterals. Also, keep pinching off any suckers that are coming up from the rootstock. The rootstock exists to feed the scionwood, not to be proud of itself. Next year, leave a central leader but chop it off about 1-½’ above your belt to create the second tier of lateral branches. In the third year, head the leader back to about 3’ above your belt. In the forth and subsequent years, keep the tree height below what you can reach.
Your goal is a tiered cake-shape, which exposes all branches to the sun.
Yes, you need to decide now on a central leader for next year, so, on trees with a V-notch, eliminate the weaker or uglier of each pair.