Great images, Michael!
Is the PP any more difficult with the Oly images, compared to Nikon?
After a while I am going to answer your question again. It is not more difficult. I had to upgrade to Camera Raw 9.5, which is only in CC available., to pp RAW Files. Sure I could have converted to DNG and pp in my LR 5.7. I tried, the result was not that good, cos no Profile was provided.
If you pp the ORF files, you should set Camera Natural in PP first, instead Adobe Standard. One important thing is, if you use the kit, (i have just this one) you have to sharpen a bit over +30
I used the Olympus Software, but it is not quit as good as the Camera Raw. I think it is also because of lacking my experience with it.