a while cloud
Clouds are often associated with God, and particularly the Son of Man (Mtt. Mat. 24:30; Luke Luke 21:27; Rev. Rev. 1:7+). See commentary on Revelation 1:7.
One like the Son of Man
A clear indication that none other than Jesus is sitting on the cloud (Dan. Dan. 7:13; Mtt. Mat. 26:64). The reason that Son of Man oversees the harvest of wheat is that it is He who sowed the good seed (Mtt. Mat. 13:37). having on His head a golden crown
Crown is στέφανον [stephanon] . See Crowns.