See the star's latest look from the designer!

It was her first major red carpet appearance since announcing her second pregnancy (and subsequently battling the most severe pregnancy sickness we’ve ever heard of), so we weren’t surprised to see that Princess Kate chose a gown by her go-to evening dress designer, Jenny Packham, for the 50th Wildlife Photographer of the Year competition at the Natural History Museum in London on Tuesday.

Kate Middleton JEnny Packham

Landov(2); Getty(2); Splash News;

And apparently pregnancy is making her take some risks again (remember the bangs from two years ago?). This time, she chose a design with some exciting new elements, including a slit that revealed a knee-length underskirt. She paired it with blush-colored L.K.Bennett “Agata” heels (another bold choice: she ordinarily wears closed-toe pumps), a matching clutch and her signature blowout (which we’re willing to bet remained intact even on her worst days in bed). The blowout, of course, was a return to form after stepping out earlier that day in another major style switch-up: a ponytail.

The flattering, pale blue creation makes it obvious why Kate’s devoted to the British designer — and why Packham has been behind some of Kate’s most memorable style moments. Previous looks from the designer include the shimmery rose sequin gown with Swarovski crystals she wore to a gala shortly after her wedding; an ink blue off-the-shoulder number she’s already worn twice; a sparkly champagne fully beaded dress worn to 2013’s Tusk Awards and the stunning teal lace-trimmed gown that took the Duchess from demure to (somewhat) daring.

In addition to those big-night-out gowns, Kate has also turned to Packham to create a look for a very memorable occasion: the polka-dot dress that she wore to debut baby George on the steps of London’s St. Mary’s hospital.

Which Packham look are you loving? Tell us in the comments!

–Andrea Lavinthal