Very much on purpose, yes. For pictures containing cornflowers and the like in fields of grains I prefer to develop for contrast and clarity. A matter of personal taste mostly. This has the effect that skies look rather dramatic as well, which fits my personal taste for the sky in the pictures above as well. Sometimes I still decide to revert the skies to a less heavily edited version in photoshop, but in the pictures above I just happened to like the overall appearance.
The pictures of the forest details are far less heavily edited. I just like this far softer nearly SooC approach for pictures of forests and forest details. Again, this is pretty much a matter of personal taste. Sometimes I process all my forest pictures by just setting the correct WB and export them as JPG without any further editing.
