Blurry:

    Unintentionally Blurred Faces
    Motion Blur from Camera Shake
    Out-of-Focus Landscape
    Blurred Text on Signage
    Poorly Captured Action Shots

Low Quality:

    Pixelated Images
    Heavy JPEG Compression Artifacts
    Grainy and Noisy Photos
    Images with Visible Banding
    Images with Low Resolution or Detail