The former Miss Wales, 33, showed off her newborn daughter Siera in photos shared on her Instagram account.
The baby was born less than a month ago, on 20 November, and is still SO tiny!
In one collage, proud mum Imogen can be seen wrapped up warm against the cold December day as she cuddles her daughter Siera.
Meanwhile eldest daughter Ariana, two, enjoys the rides at London's Winter Wonderland at Hyde Park.
Imogen also shared a photo of tiny Siera in her moses basket, with the message: "Oh to be a baby again. #sieraaleira."
Not to be outshined, however, Ariana looks gorgeous in another snap where she can be seen getting into the festive spirit in a red reindeer jumper.
In another cute picture, Imogen's friend Emily can be seen holding Siera, while Ariana plays with a toy behind her on the bed.
Alongside the cute black and white photo, Imogen wrote: "I'm in love with this pic of my bezzie @emilyjane3333 and my two girls."
CBB star Imogen also chose to share a photo from the day she "met my little princess Siera....#20nov2015 #bonding".
And we think Imogen looks pretty good considering she'd just given birth!
Imogen announced Siera's arrival when she posted a sweet photo of her tiny hands with the message: "Welcome to the world baby girl. Siera Aleira Horsley. Born at 11.13am this morning - weighing 7LBS1. She's perfect."
Siera is Imogen's second child with her long-term partner Adam Horsley and although she is smitten with her children, she recently admitted: "The 4am feed kills me."
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