I find water, rocks and cactus to be very natural abstract forms. Water is always intriguing, changing form and affecting everything it touches. Rocks are just amazing in the diversity of shape, size, color and texture that they come in. And cactus are just mystifying. What a strange world we live in; it’s all abstract to me.
I could have chosen hundreds of photos for this subject, but in the interest of time I chose these. Go here for more WordPress Weekly Photos/Abstract