Lilac Flowers in Sunlight — Blue, Serene

1600 × 900

Frost-covered Tree Branches — Blue, Cold

1600 × 1200

Infrared Tree Canopy

1853 × 1236

blue-tinted tree canopy

3863 × 2175

Forest with Tall Trees — Blue, Serene, Autumn

1600 × 1000

tree canopy from below

2560 × 1600

tree branches against sky

1600 × 1200

Tree Trunk and Branches — Blue, Dramatic

1680 × 1050

Bare Tree Branches — Blue, Calm, Spring

4928 × 3264

Blue-tinted Maple Leaves — Blue

1500 × 1000

Yellow Leaves on Branches — Serene, Autumn

3840 × 2160

Green Leaves on Branches — Serene

1200 × 851