Maybe it's because we perpetually play gateway to the Spanish-speaking world. Or because of the international presence of Art Basel. Perhaps it's the well-heeled cool of the Design District. Whatever the reason—or reasons—may be, Miami dwellers cannot deny: Our fair city is a total hotbed for cutting-edge creativity.While we have venerable collectors and MOCA in our midst, what really keeps the 305's scene so fiery is the abundance of up-and-comers who're making like Haulover Beach and creating some major waves. So, instead of hanging out daily in Wynwood to scoop the Next Big Thing, we asked David Castillo, a true Miami insider to give us his rundown on emerging artists to know. Not only did he highlight a handful of his own rising stars from his namesake gallery, but the internationally renowned dealer pointed out some young guns whose ascent he is closely watching. From performance artists who play dress up to a video-inspired sister-act, Castillo's picks are a Who's Who of Miami's creative ingenues. Photo: Courtesy of the artist; "134 days and 21 hours," courtesy of the artist.