Practicing - Depth of Field

While Bob was shooting the abandoned mushroom farm I thought I would practice my depth of field. I want to improve my "intuition" so that I can more quickly gage the correct aperture to ensure that my subject is fully in focus but the background is blurred. It will make for better candid's.

Not an interesting picture, but as I said - just practicing.

Bugs - Close up.

This is a crop of the picture above.