The temporal fusion scene

Using these two photos€”one of my empty backyard in summer, one of me building a snowman in winter€”create a single, realistic photograph. The scene should show the left half of the yard in vibrant summer, and the right half in deep winter with snow, with a seamless transition down the middle. Place €˜winter me€™ building the snowman in the snowy half, and €˜summer me€™ reading in a lawn chair in the summer half. The lighting should be consistent as on an overcast day.