the statues do have a name...
These statues at Twickenham riverside do have a formal title, but are always known as "the naked ladies". They were brought from Italy by Whitaker Wright, a local resident. They had fallen into decay but have recently been cleaned and restored. They are on Public view next to the river, opposite Eel-Pie Island, behind York House.
The statues are difficult to photograph because the light is generally behind them.
The building in the background is called "Dial House" and was once lived in by the local philanthropist Elizabeth Twining, a member of the well-known Twinings Tea company.