At Liv Sienne, Nikki Atkinson brings together expert craftsmanship and a deep love for design to offer beautifully tailored garments that fit and flatter.

Specialising in general and bridal alterations, as well as custom-made fashion, Nikki provides a personalised, detail-oriented service that helps clients feel confident and comfortable in what they wear.

She is also the founder and designer at Horrocks Vale Collections, where she creates sustainable, eco-friendly bridal wear that reflects her passion for conscious fashion and timeless elegance.

Whether you're preparing for a special occasion or refining a favourite piece, Nikki's thoughtful approach ensures every garment is finished with care.

  • General Alterations

    From everyday wardrobe fixes to detailed tailoring, Nikki ensures your garments fit perfectly and feel just right. Whether it’s adjusting hems, taking in seams or refreshing an old favourite, your clothes are in expert hands.

  • Bridal Alterations

    Nikki specialises in bridal alterations, offering a calm and considered approach to ensure your gown fits beautifully on your special day. With an eye for detail and years of experience, she’ll work closely with you to achieve the perfect silhouette.

  • Custom-Made Fashion

    Looking for something truly unique? Nikki brings your vision to life with custom-made pieces tailored to your personal style. From initial concept to final fitting, each creation is thoughtfully crafted to flatter and inspire confidence.

Liv Sienne in the Media

  • Fleurieu in the Flinders

    Fleurieu in the Flinders

    FLEURIEU IN THE FLINDERS, THE MEETING OF TWO DESIGNERS When Megan Caldersmith and Nikki Atkinson met at Fashion college in 1988 neither would have imagined they’d be best friends and...

    Fleurieu in the Flinders

    FLEURIEU IN THE FLINDERS, THE MEETING OF TWO DESIGNERS When Megan Caldersmith and Nikki Atkinson met at Fashion college in 1988 neither would have imagined they’d be best friends and...

  • Press Release: Adelaide shines bright in the city that never sleeps

    Press Release: Adelaide shines bright in the ci...

    TWO ADELAIDE WOMEN TAKE ON NEW YORK CITY IN A PERFECT COLLABORATION They say a perfect collaboration is when great minds come together to create something extraordinarily beautiful and that...

    Press Release: Adelaide shines bright in the ci...

    TWO ADELAIDE WOMEN TAKE ON NEW YORK CITY IN A PERFECT COLLABORATION They say a perfect collaboration is when great minds come together to create something extraordinarily beautiful and that...

  • Wilmington fashion designer getting noticed in the USA

    Wilmington fashion designer getting noticed in ...

    Wilmington fashion designer, Nikki Atkinson, has been invited to make two couture dresses valued at $1500 each, for the editor of #IAmDeVoted Magazine, Ms Gwen DeVoe.  The magazine which is...

    Wilmington fashion designer getting noticed in ...

    Wilmington fashion designer, Nikki Atkinson, has been invited to make two couture dresses valued at $1500 each, for the editor of #IAmDeVoted Magazine, Ms Gwen DeVoe.  The magazine which is...

  • Living colours inspire Wilmington fashion Designer

    Living colours inspire Wilmington fashion Designer

    From hues of toffee, brown and gold that add a softness to the harsh dry of the Flinders Ranges to the brilliant blues of the Spencer Gulf, designer Nikki Atkinson...

    Living colours inspire Wilmington fashion Designer

    From hues of toffee, brown and gold that add a softness to the harsh dry of the Flinders Ranges to the brilliant blues of the Spencer Gulf, designer Nikki Atkinson...

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