(illustration), (cartoons), (painting), (sketch), (low quality), (blurry), (poor detailing), (unconvincing skull markings), (inconsistent shadows), (unnatural colors), (distracting elements), (busy background), (unbalanced composition), (exaggerated features), (unprofessional), (amateurish), (grainy), (pixelated), (((caricature))), ((distorted proportions))), ((non-realistic)))., ugly, deformed, noisy, blurry, distorted, grainy