I think you need a lot more practice. Both myself and others are getting great images from the GH4. I am in the minority because I don't like to screw around with the camera settings. I like the "baked in" look using standard and cine V which requires very little tweaking in post for outdoor work if you nail exposure and white balance . My indoor experience is limited.
Mark, this is amazing. Those macro shots are beautiful! Did you get that close using the Olympus 60mm macro, or did you have something else available?
