Inside Jillian Jacqueline's 'Bohemian Art Deco' Nashville Wedding: All the Photos

The rising country singer-songwriter tied the knot with Bryan Brown, the guitarist in her band, on April 27 in front of 150 guests at event venue Ruby in Nashville.

Brown, 38, left a sweet surprise for Jacqueline, 31, to find as she prepared for her big day.

"I liked opting for more bold colors instead of the traditional spring pastels," Jacqueline told PEOPLE, adding that the theme was, "Sort of bohemian Art Deco greenhouse … colorful velvet couches, vintage rugs, rattan, lots of birds of paradise plants. The only flowers will be my bouquet; everything else is greenery."

Jacqueline poses with her mother and sisters. The bridal party consisted of the "Reasons" singer's three siblings as well as Brown's producer brother Tofer, who introduced the newlyweds.

Jacqueline wore a Theia bridal gown, which she described as "classy and elegant" with an "old Hollywood silk silhouette." After trying on five dresses, Jacqueline said she knew it was the one right when she put it on.

"As clichéd as it sounds, we both really knew very early on that we would get married," Jacqueline told PEOPLE.

"We knew we would want to be together regardless, so almost three years in felt like a good time to solidify forever."

The couple wrote their own vows, which was the "most important moment of the ceremony" to Jacqueline, who anticipated they both would be "100 percent bawling" during the special moment.

Food was a "huge priority" for the couple, who decided to serve their guests a "little bit of everything."

"Our friends and family have very diverse palates, and we wanted to accommodate everyone," Jacqueline said. "Lots of yummy appetizers during cocktail hour (including lamb skewers, Thai spring rolls, and a make-your-own-mini hamburger station) and then for dinner we have filet, prawn or grilled halibut."

As for dessert, they served a chocolate wedding cake with buttercream icing by Baked in Nashville and had an ice cream sundae bar because as Jacqueline put it, "Who doesn't love ice cream?"

Jacqueline credits "communication" and "having a good sense of humor" for making both their romantic and professional relationships work.

"We talk a lot, about everything," she said. "Even when we're pissed, we can usually find a reason to laugh at the situation, because in the end it's probably not that big of a deal. It really teaches you to pick your battles and have patience."