What you want is very specific attire, in terms of how formal it is, the form it takes, and the tone regarding an event
Metallic or brightly colored statement earrings instantly dress up the dark backdrop, and a pair of heeled sandals or pointed-toe pumps adds polish
Complete the Look: Pair theWestern Belle Flowy Lace Dress with
If the dressing is too tangy, add a teaspoon or so of honey
A blouse or sweater that is not low-cut Tailored jeans with no rips or distressing for casual services (white jeans are a great spring option here are my favorites) Heels, sandals, or nice dress shoes (See my favorite sandals here and my favorite heels here) For men: Khakis and a belt A button-down shirt or polo Tailored jeans that arent distressed A pair of dress pants or trousers, button-down and tie with a blazer or suit jacket (this is probably less common these days, but would be appropriate at an LDS church, a Catholic church and perhaps a Presbyterian church just from observation, not from a place of expertise for the latter two)