Inserting 6, 8, 4, 7, 2, 3, 9, 1, 5.

inserting 6
[6]
 6

inserting 8.
[6,8]
  6
 8

inserting 4 and restoring the heap invariant.
[6,8,4] -> [4,8,6]
  6          4
 8 4        8 6

inserting 7 and restoring the heap invariant.
[4,8,6,7] -> [4,7,6,8]
   4            4
  8 6          7 6
 7            8

inserting 2 and restoring the heap invariant.
[4,8,6,7,2] -> [4,2,6,7,8] -> [2,4,6,7,8]
    4              4              2
  8   6          2   6          4   6
 7 2            7 8            7 8

inserting 3 and restoring the heap invariant.
[2,4,6,7,8,3] -> [2,4,3,7,8,6]
     2                2
  4    6           4    3
 7 8  3           7 8  6

inserting 9.
[2,4,3,7,8,6,9]
     2
  4    3
 7 8  6 9

inserting 1 and restoring the heap invariant.
[2,4,3,7,8,6,9,1] -> [2,4,3,1,8,6,9,7] -> [2,1,3,4,8,6,9,7] -> [1,2,3,4,8,6,9,7]
      2                    2                    2                    1
   4     3              4     3              1     3              2     3
  7 8   6 9            1 8   6 9            4 8   6 9            4 8   6 9
 1                    7                    7                    7

inserting 5.
[1,2,3,4,8,6,9,7,5]
        1
    2       3
  4   8   6   9
 7 5