The former world no1 posed in a double denim ensemble in a swanky hotel for several photos.
Sharapova, 36, looked different from in her playing days when she often sported light blonde hair.
She now opts for a darker colour, albeit with blonde highlights.
The former tennis star boasts 4.6million followers on the app.
She was one of the most recognisable names in tennis in the 2000s.
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One of her many fans wrote: “Love the new look! Hope it’s all going well there xx”
A second fan wrote: “Stunning photos and you look absolutely gorgeous.”
While a third chimed in with: “Eternally Beautiful!”
A fourth wrote: “Beautiful lady.”
And a fifth said: “Love it 😍”
Since retiring in 2020, Sharapova has launched several businesses and has collaborated with the UN on charity work.
She is married to British businessman Alexander Gilkes, who was previously married to Misha Nonoo.
Nonoo is a fashion designer who is believed to have introduced Prince Harry to Meghan Markle.
The couple had their first child together, Theodore, in 2022.