1-8
: All dance reels of 4 on sides
9-16
: 1s & 4s turn RH moving into centre of set **while** 2s+3s turn LH on
  sides & ending in corners, 1s+4s dance RH across. 2 1 4 3
17-24
: 1s+4s+3s dance reflection reels on sides (4s in & down to start)
25-32
: 4s dance Diag R&L (M down) ending 2 (3) 4 (1)

{{explanation}}
Note - repeat with new 2s & 4s on opposite sides, 2nd repeat ends with all on opposite sides & 4th repeat all on own sides