colorful hand-drawn brain with hearts and stars, izing creativity, love, and intellect in a whimsical style

colorful hand draw brain heart star symbolize creativity love playful intellect stylize dreamy graphic emotion cheerful cognitive cartoon doodle vintage whimsy brainstorm happy artistic whimsical genius conceptual neuroscience vibrant concept retro brainpower expressive mental neuron passion idea artwork lifestyle handdrawn hearts stars symbolizing style generative