Avoid creating a psychedelic design that is overly chaotic, as it may reduce the overall appeal and cohesiveness. Steer clear of excessively bright or harsh colors that might cause visual discomfort. Refrain from intricate patterns that could become confusing and hinder readability on a T-shirt. Avoid using distorted images that may appear unsettling or disconnected from the overall theme. Be cautious with the level of complexity to ensure the design is engaging without being overwhelming.