The Queen wrote a touching letter to a woman who painted a "pretty awful" portrait of Prince Phillip.
Honor Morisson, 23, was so moved by the Duke of Edinburgh's funeral earlier this year she spent four hours painting a tribute to him.
She left her canvas in the living room of her family home in St Albans, Herts., over a few weeks, but soon found her work "creepy".
Honor jokingly suggested on TikTok that she would send the portrait to Buckingham Palace if she got more than 1,000 likes.
Her video went viral and she sent the painting to the Queen along with a heartfelt letter of condolence.
Last week she was surprised to receive a letter in the post with a Royal Mail ER stamp on the envelope.
The BBC assistant filmed herself opening the letter and found a photo pamphlet about Prince Phillip and a personalised letter on behalf of the Queen.
The letter read: "The Queen wishes me to write and thank you very much for your message of sympathy and for the charming painting you sent on the death of Her Majesty's beloved husband, The Duke of Edinburgh.
"The Queen has been deeply touched by the messages she has received from all around the world and is most grateful for your thoughtful support for Her Majesty at this time in sending her your kind present."
Her latest video has since received over 1.7million views from many who were amazed she got a reply.
Honor said: "His death just struck a chord with me. It was a sunny afternoon and I really fancied panting. I didn't want to do my mum as I knew her face too well.
"Seeing as Prince Philip was absolutely everywhere on TV and I didn't know who else to paint. Not to be rude but his wrinkly face made for a great subject."
She added: "It was looking a bit creepy and it was feeling like he was watching me. I didn't want it around anymore but I didn't want to bin it.
"I put it on TikTok and as a joke, I suggested I would send it to Buckingham Palace if it reached over 1,000 likes.
"It went mad so I filmed myself wrapping it up. I sent it off in May and there was silence ever since."
Honor said it was "bonkers" that she even received a reply from Buckingham Palace.
"I'm just really honoured and really grateful," she said. "It's incredibly touching and I wasn't expecting anything back.
"I thought sending a large parcel to Bucking Palace would just look a bit dodgy and it would end up being destroyed.
"I'm just really surprised and it's one of those things I'll keep forever and be sure to tell the grandkids in years to come."
Prince Philip was laid to rest on April 17 in the Royal Vault following his funeral ceremony in St George's Chapel at Windsor Castle.
The Duke of Edinburgh died on April 9 at the age of 99, just two months before his 100th birthday.
The Queen's husband's funeral took place at the chapel but only 30 mourners were allowed to attend because of the Covid restrictions at the time.