Conor Bolger, 8, stands outside Mountain Vista High School in Highlands Ranch, Colorado, on National School Walkout Day, March 14, 2018. 

This young boy rides in the back of a truck hauling trash in Colombia. He gazes at me taking photos from the rear seat of the moving moped I'm riding.

Dandylions are difficult to take pictures of because the yellow on yellow provides little distinguishable contrast. The best way to photograph them, I've learned, is to get on their level instead of from above.

This photo was taken at the Real Jardín Botanico de Madrid in Madrid, Spain.

I love the reflection of the trees and the shadow of this guy on the car. 

The leading lines and use of aperture help to frame this photo. I'm proud of the depth of field that you can see even with a small f-stop.

I hope that this little fella eventually spread his wings!

A friend and I visited Canada during springtime and someone had left this flower on the side of a building. I enjoy the contrast of colors.

So this might be a generic 'bee on flower' picture, but as a photographer who enjoys macro, this is a must-have staple. This picture was taken at the Real Jardín Botanico en Madrid, Spain.

The sun, sand, and shells in Valencia, Spain provided this macro photo. I like the fact that it's a photo that you have to really look at to understand.

I think that getting down in the mud with flowers and bugs can prove to make great photos.

This photo of canal-side houses was taken from a boat in Amsterdam.

After takeoff from California, the pilot flew over the Pacific before turning to head towards Colorado. The light was perfect for just a few seconds to cast the airplane's shadow over some low-lying clouds. A second later, it was gone, but I got the picture!

A pair of mallards hang out near the river's edge in Ghent, Belgium

A sailboat sails past the sunset near Mallory Square in Key West, Florida.

The leading lines and fall colors make this photo look a little rustic.

A young bear prepares to climb over a backyard fence in Colorado Springs, Colorado.

A Gypsy woman waits for handouts outside the Köln Cathedral in Köln, Germany.