Man with White Beard — Brown, Academic

1920 × 1080

Mathematician at a chalkboard

1024 × 768

Man at typewriter in study

1280 × 720

Man reading document at desk

1685 × 1049

Woman Sitting on Desk — Black, Dramatic

1200 × 750

Portrait of a man at a desk

1536 × 2048

Man in Military Uniform — Brown, Dramatic, Night

1280 × 854

Chalkboard with Nose Drawings

1920 × 1080

study materials on a desk

1920 × 1200

Man at a drafting table

2608 × 1848

man sitting in front of chalkboard

1600 × 1067

Man sitting in front of a chalkboard

1200 × 750