A stylized grass 3D model could be described as having vibrant, exaggerated blades with whimsical shapes and colors. It might feature exaggerated curves or points, giving it a unique and artistic appearance. The colors could vary from natural greens to more vibrant or even fantastical hues, depending on the artistic direction. Overall, the stylized grass 3D model would aim to evoke a sense of creativity and imagination rather than realism.