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With the Miller sisters calling it quits on their Twenty8Twelve label in January, Savannah Miller is wasting no time in creating a new fashion line. According to Sienna Miller, her talented sibling is hard at work on a new project - in Sienna's attic no less!

"My sister is an amazing designer - she's working on her new label at the moment." Sienna revealed to Vogue UK. "In fact she's designing in my attic as we speak. I just can't wait to wear all of the pieces."

I love a little creative project being worked on Flowers in the Attic-style!

Sienna and Savannah announced they were leaving Twenty8Twelve, the label they co-founded in 2007, earlier this year. The label continued on under the leadership of its current design team. It was around this same time that Sienna announced she was pregnant with her first child.

"We've had a brilliant six years at Twenty8Twelve and are now looking forward to new pastures. We wish the brand the best of luck for the future," the sisters said at the time.