Posters for a beach festival

I'm looking to have posters created for a beach festival that I'm hosting and I need a talented freelancer to help me out! The theme of the festival is food, music and entertainment, and I'm looking for posters that are sure to catch people's attention. The posters should measure 11x17 inches for Instagram and Facebook, and should feature bold and vibrant colors to capture the energy of the festival. If you have experience creating eye-catching posters and can help bring this festival to life, I'd love to hear from you!