Serena Williams lovingly revealed her new baby Adira’s regal nursery in a YouTube montage posted this week.

The 41-year-old tennis icon and her husband, Reddit co-founder Alexis Ohanian, share two daughters – Olympia, five, and Adira, born earlier this month.

Now Serena has lifted the curtain on the sumptuous new bedroom she has prepared for her latest little bundle of joy.

Adira’s nursery includes a massive crown mounted on the wall over the crib, which features deep red plush against one of its walls.

Matching red drapery has been hung beneath the crown, offering the appearance of a canopy over the elegantly designed bed.

Some of the luxuries in the well-appointed nursery include a wine-colored chest, a towering stuffed giraffe and even a walk-in-closet.

The design of the room, courtesy of the Dutch firm By Selina, featured a stylish floral vine print dripping down the wall in one corner.

A couple of stuffed hot air balloons are strung from the ceiling, and there is a picture on one wall splashed with the message: ‘VICTORY REDEFINED.’

Serena’s YouTube video began with a few snatches of footage taken three weeks ago, when she was still heavily pregnant with Adira.

At that point the nursery, which had previously been Olympia’s bedroom, was still fairly bare and nowhere near the opulence it has since achieved.

Decked out in Gucci maternity wear, Serena briefly showed her fans around the empty room, which was strewn with supplies.

She then attempted to take the camera into Olympia’s current playroom, only for her little girl to eject her, to which Serena cracked: ‘I’ve been kicked outta better places.’

Serena returned to the nursery and began futzing around with the supplies, only for it to become clear that Olympia was still feeling grouchy.

The five-year-old, possibly in a fit of pique at her old bedroom being co-opted, flounced into the nursery, snatched a roll of floral paper out of her mother’s hand and then stormed back out of the room.

‘Where your mama at? Your mama need to get you,’ Serena joked. ‘She’s lucky we’re filming! I’m just kidding. She’s so funny.’

By Selina posted their own pictures of the nursery they designed – and showered gratitude on Serena for choosing them.

‘It was such a privilage [sic] to meet you and to custom design the nursery for baby Adira, not knowing the gender or name at the time,’ they wrote.

‘It was truly an honor to be able to personally deliver this to your home where we felt really welcome, and we are so grateful you’re happy with the result. You gave us an golden memory on this one!’ the company continued.

Serena announced Adira’s birth last Tuesday, posting a heartwarming family TikTok that provided the first-ever public glimpse of her new baby.

She also went public with Adira’s name, a Hebrew word whose various translations include ‘noble,’ ‘powerful’ and ‘majestic.’

‘Welcome, Adira River Ohanian,’ Alexis proudly wrote on his own Instagram after Serena announced the baby’s birth on TikTok.