Incorrect proportions: it is important to observe the correct proportions of the human body, such as the size of the head in relation to the body, length of the arms and legs, etc.

Misaligned limbs: the arms and legs should be positioned correctly in relation to the body, without appearing misaligned or disconnected.

Poorly drawn hands and feet: hands and feet are important parts of human anatomy and should be represented accurately, including the fingers and joints.

Facial anatomy errors: the eyes, nose, and mouth should be well positioned and with correct proportions. The eyes should not be too close or too far apart from each other, the nose should not be too large or too small, and the mouth should be aligned with the rest of the face.

Inappropriate posture: it is important to represent the posture of the human body realistically, avoiding positions that appear awkward or uncomfortable.

Errors in shading and lighting: shading and lighting are important to give volume and depth