Using too bright colors or saturated textures for the skin. This can make the character unnatural and unrealistic.

Insufficient detailing of the body or clothing. Shrek is a powerful and powerful character, and his figure should reflect this.

Overuse of details, which can make the image of Shrek redundant and overloaded.

Poor choice of emotions or mood. Shrek's eyes and face should reflect his character and personality, so choosing the wrong emotions can affect the overall atmosphere of the image.