When Meghan Markle first married Prince Harry, she repeatedly came under fire for actions which seemingly went against royal traditions and protocol.
From not wearing a hat during an engagement with the queen to closing her own car door and dressing in a manner which was too 'Hollywood'.
But one of her biggest 'faux pas' came during an awards ceremony.
When making a surprise appearance at the British Fashion Awards in December 2018, the Duchess of Sussex was photographed wearing dark nail polish - something the Queen has been known to consider 'vulgar'.
Meghan Markle shares sweet photo of baby Archie on US Mother's Day
Commonly royals are seen to wear very light pink or nude shades of nail polish when attending events.
The Queen herself has sworn by the same colour varnish for over 30 years - a £7.99 bottle of Essie's Ballet Slippers.
And while she may have hit a few bumps in the road whilst learning to truly become a member of Britain's most famous family, it seems Meghan may have finally embraced her royal lifestyle.
This is because of a sweet gesture the new mum made in a photo on Instagram .
Meghan's hidden tribute to Princess Diana as she releases Archie picture for Mother's Day
Posting on her and Harry's joint account, SussexRoyal, to mark Mother's Day in the US, the 37-year-old shared a snap of her cradling baby Archie's feet near some beautiful flowers.
While being quite arty, the Meghan Markle shares sweet photo of baby Archie on US Mother's Day also shows Meghan's nails, which are coated in a nude shade of nail varnish.
The simple, yet effective, nod to the Queen's beauty preference suggests the Duchess has learnt and taken on board the dos and don'ts of being married to a prince.
Meghan Markle's mum has inspired a romance novel set at Sandringham
She captioned the post: "Paying tribute to all mothers today - past, present, mothers-to-be, and those lost but forever remembered.
"We honor and celebrate each and every one of you.
"Today is Mother's Day in the United States, Canada, Australia, New Zealand, South Africa, Kenya, Japan and several countries across Europe.
"This is the first Mother's Day for the Duchess of Sussex."
Alongside this, she shared a quote from Lands by Nayyirah Waheed.
It reads: "My mother was my first country; the first place I ever lived."
Thousands have liked the post, with Meghan's BFF Jessica Mulroney commenting: "Happy Mother's Day".
