Macro photography - The common fly

I'm back with my extremely infrequent posts. I have recently been focusing on macro photography and here are some images I've taken of the common fly. These images were taken at the local park but they are everywhere.

Perched on a blade of grass with seeds

Close up of a fly on a leaf

Fly on a leaf

Side view of a fly perched on a leaf. Strands of a spider's web can be seen below the leaf.

And yet another fly on a leaf. It's a recurring theme.

I'm not sure if they are of the same species or not, they look the same. All images taken with a Nikon D7000 + Sigma 180mm macro + extension tubes. Edited and resized in darktable.