wedding guest dress casual Spring Guide Summer/Spring Replying to @Saig these are

You canjust opt for one in a luxe fabric and a more sophisticated silhouette

Well start with light gray trousers paired with gray and pink socksthe gray for the tonal transition and the pink for visual interestand for further pop, high-contrast black shoes since black is a constituent color of gray

Poor fit : While this isnt specific to the creative black tie dress code, its of such importance that it warrants a mention here

Grey Blazer with Green Polo T-shirt Youll find this pairing of a polo T-shirt and a blazer in the epicenter of the smart-casual dress code

Just as cute at the knee or hip length with the Taper Pant or a short version of the Pencil Skirt