Underwater Castle Ruins — Blue, Mysterious

1280 × 800

Mask Underwater

1413 × 893

Blue Ghost with Pink Eyes — Mysterious

1920 × 1080

Jungle Vines and Roots

1024 × 768

Glowing Crystals in Cave — Blue

1920 × 1038

Blue Handprint

1280 × 960

Fish in Aquarium — Blue

2352 × 1568

Blue and Green Fish

1024 × 768

Glowing Biohazard Symbol — Blue, Dark, Night

1152 × 864

Glowing Biohazard Symbol — Blue, Dark, Night, 3d Render

1024 × 768

Text Art on Dark Background — Black, Digital Art

1680 × 1050

Green Skull in Web

800 × 600