Logo design, flat, vector, 2d, generate a logo for an event rental agency specializing in inflatable castles. the logo should feature an image of a tornado to represent the element of air. the dominant color of the logo should be blue to evoke a fresh and playful atmosphere. the font style should be clear and legible. the logo should also include the name of the agency and a subtitle if necessary. add additional details such as elements of inflatable castles or balloons to reinforce the festive aspect of the agency.