Photoshop Elements 15 - crop and size reduce two images to produce mosaic

Solstice Sunset and Sunrise in Mutare
The pre-solstice Sun (top) setting behind a pareidolic cloud above Transmitter Hill at 4.34 pm on June 20th and post-solstice Sun (bottom) rising above a hill in Cecil Kop Nature Reserve at 7.01 on the morning of the 21st. The Sun at moment of solstice was not visible from Mutare as this took place during the night of the 20th at 11.44 pm.