Certainly all sounds "normal" doesn't it.
Pity we can't see the 3 of them as a family together anywhere.
Was Willie with Esther and her new husband in 1891?
This is another issue - I cannot find Esther & William Watkins nor Willie on the 1891 Census, despite searching for many years
By the time the census was taken on 5th April 1891, the first child of her marriage to William Watkins was already born - she was Mary Ann Watkins (known as Annie to the family) who was born at Wollaston, Gloucestershire on 3 March 1891
Mary Ann's birth certificate (misspelt Watkings) lists the mother as Esther Watkings late Jones, formerly Wood