Woman Holding Portal Gun — White, Action

1920 × 1080

Armored Soldier in Jungle — Black

1600 × 900

Soldier in Green Armor — Black

1920 × 1200

Two Robots in Motion

1680 × 1050

Man and Woman in Futuristic Gear — Gray

1440 × 900

Four Characters in Armor — Red, Aggressive

1600 × 1200

Three Characters in Armor — White

1920 × 1080

Woman Holding a Weapon — White

1086 × 1000

Female Character Holding Gun — Blue, Action, Digital Art

1920 × 1080

Aperture Science Logo — Blue, Technological

1440 × 900

Aperture Science Logo — Yellow, Dramatic

2560 × 1600

Terran Soldier in Sci-fi Base

1600 × 1200