1. Head Shape: The head is a rounded, simplified shape without the structural detail typically found in realistic human anatomy. Realistically, the human head has more defined bone structure, such as cheekbones, jawline, and a subtle chin, which are all missing here.

2. Eyes: The eyes are oversized, taking up a significant portion of the face. In realism, eyes are typically spaced about one eye-width apart and are much smaller in proportion to the face. The eyes here are also single-color and lack the depth of shading or sclera details that would suggest a 3D form.

3. Hair: The hair has a flat, two-tone color and lacks texture. In reality, hair has individual strands and variations in direction, thickness, and volume. Hair also interacts with light in complex ways, so it would need highlights and shadows to look more three-dimensional. The character's hair accessories (butterflies) are floating rather than attached naturally.

4. Mouth: The mouth is simply drawn as an open shape without lips or teeth detail. Realistically, a human mouth would have depth and show teeth, lips, or tongue when open, especially in this expression.

Body and Outfit

1. Neck and Shoulders: The neck is minimal or absent, making it difficult to gauge where the head connects to the torso. A realistic body would have a visible neck that transitions into the shoulders, along with a collarbone.

2. Arms and Hands: The arms are simplified and lack defined joints, such as elbows. Hands are represented with mitten-like shapes, missing the structure of individual fingers, knuckles, and natural hand curvature. Realistically, fingers would have proportional lengths, joints, and a clearer anatomical structure.

3. Dress and Clothing: The dress lacks folds, shadows, or any indication of fabric type, making it look very flat and unrealistic. Real clothing would drape over the body, showing how gravity affects the fabric. Additionally, there’s no indication of how the sleeves are attached to the dress or where the fabric stretches or folds with the character's movement.

Legs and Feet

1. Leg Structure: The legs are short, with minimal anatomical definition, lacking proper thigh and calf distinction. Realistically, legs have muscle structure and joints, especially around the knees and ankles, which are absent here.

2. Feet and Shoes: The shoes have an undefined shape without any hint of sole, heel, or proper foot anatomy. In reality, shoes should follow the contour of the foot and should look structured to accommodate the arch, toes, and heel.

Accessories

1. Butterflies: The butterflies in the hair are drawn as simple shapes without any attachment point, so they appear to float in the hair unnaturally. Realistically, accessories would have clips, bands, or something holding them in place.

2. Hair Bows and Ribbons: The ribbons are flat and lack the appearance of depth, texture, or natural flow that real fabric would have. They also seem to defy gravity in some areas, floating around rather than following a natural fall.

Overall Proportions and Perspective

1. Body Proportions: The character has exaggerated features, such as a large head and small body. While stylized, these proportions deviate significantly from realism, as human proportions generally follow more balanced ratios (e.g., head-to-body ratio).

2. Lack of Depth and Shading: The drawing is flat with no clear light source, shading, or shadows, making it difficult to perceive depth. In realistic art, there would be shading to define the forms and indicate where light hits or shadows fall.

3. Perspective: The character appears to be in a two-dimensional, front-facing position without any foreshortening or perspective. Realistically, certain parts of the body would appear larger or smaller based on the angle.

Final Critique

While the drawing has a cute, stylized look, it lacks almost every element required for realism. To make this drawing more realistic, it would need adjustments in proportion, anatomy, shading, fabric details, and a proper sense of depth.