"It's a madhouse back here. It's really overwhelming." So went Eric Renteria's response when questioned backstage prior to his New York Fashion Week show. The Dallas-based designer of Etiquette Vintage Design was asked to showcase his collection in a multi-line Fashion Week presentation this past Saturday at The W New York Hotel.   Click here to read Etiquette Vintage Design to Show at New York Fashion Week.   Renteria's response was understandable. The scene backstage was utterly chaotic and exhausting. Some designers were missing garments, models were sent onstage with incomplete makeup, and the show was an hour late to start. However, it would have been naive to expect such a jam-packed show as this to go off without a hitch.       So, in the midst of all the stress, Renteria and his team readied themselves in private. Separate from the rest of scene, their mood was upbeat. Models sporting the designer's signature tulle skirts kicked off their heels and struck ballerina positions, while their male counterparts puffed up their sweater-clad chests and posed with vintage suitcases. Clean-lined eyes, pretty pink lips, and braided ponytails accentuated the youthful vibe.           Etiquette Vintage Design opened the show to a well-receiving, sold-out audience. Renteria brought a few familiar pieces to showcase, but the majority of his garments were created for the occasion. Presenting nearly 30 looks, he remained true to his line's design aesthetic.         Sportswear separates hinted at times past through retro-inspired prints and splashes of primary colors. The guys were collegiate prep-cool with custom letterman cardigans and devil-may-care demeanors, while the gals remained ladylike but flirty.       Despite technical difficulties and production mishaps, Renteria proved once again that he has what it takes to make his mark on the fashion industry – now, on a national level. The designer plans to learn from the experience of this show and move forward accordingly. With Renteria's track record for speedy growth, his next Fashion Week appearance might be just a season away.     (All photos, credit Heather Lettieri for DFW Style Daily)