D-Grower, your grafts look good. I would not do a side graft so low on the rootstock next time. Just do it on the green hardened wood anywhere along the main trunk. If your side graft is low on the medium size rootstock (3 ft) and it fails, you will have a wound on that trunk. It should heal but sometimes it will take a while and you can get bugs, fungus in the wound. I usually side graft much higher with any fruit tree seedling (graft point above many leaves below it), then is it takes you can cut off the branch above the graft if you only want that one variety. Or if you want more varieties just do the same again above the grafted point. If it fails, then you can cut off the graft and do another later maybe 1" below the failed point on the trunk.