A few nice nature image images I found:
Broken Shapes
Image by Property#1
Cropped as per a number of suggestions
View On Black
nature of our minds
Image by Konstantin Leonov
Cam: Nikon D5100
Lens: Nikkor 50mm f/1.8D AF
Aperture: f/1.8 full open
Original: air.oldstable.org/nature-of-our-minds.jpg
Keep our small planet clean, will ya?
Yates Garden Image The Delicate Trio
Image by mbtphoto (away a lot)
Nikon D-50 Yates Garden Images Lewisville, NC, USA. by Mary Bailey Thomas.