Blackberry bushes and friends

Blackberry bushes provide protection, shelter, and food to many insects. Here are a few photos I made within a short time looking at these bushes (and wondering when their fruit would be ripe so they could feed me as well):

A large skipper (Ochlodes sylvanus), groot dikkopje in Dutch, having lunch:

^{Olympus Stylus 1s, 300mm, ISO200, f8, 1/125s}

A grasshopper of unknown make and model:

^{Olympus Stylus 1s, 200mm, ISO200, f8, 1/160s}

^{Olympus Stylus 1s, 300mm, ISO200, f5.6, 1/320s}

A small heath (Coenonympha pamphilus), hooibeestje in Dutch:

^{Olympus Stylus 1s, 300mm, ISO200, f5.6, 1/125s}

This comma (Polygonia c-album), gehakkelde aurelia in Dutch, had just finished eating and was warming up in the grass:

^{Olympus Stylus 1s, 300mm, ISO200, f5.6, 1/160s}

I also noticed that some of the blackberry bushes deeper into the peat bog had very pink flowers, which is unusual:

^{Olympus Stylus 1s, 42mm, ISO800, f8, 1/30s}

I wonder what causes this colour difference.

Thanks for watching!