Blurry
Deformed hands
Harsh colors
Distorted proportions
Unrecognizable features
Incomplete background
Unfinished details
Overexposed lighting
Dull or muted palette
Lack of depth or dimension
Clashing patterns or textures
Unintentional smudging or smearing
Unbalanced composition
Inconsistent brushwork
Unnatural poses or gestures
Inaccurate anatomy
Lack of facial expression
Unappealing or mismatched clothing
Unrefined textures or gradients
Amateurish or unpolished execution