I still have my Olympus E500 and use it occasionally for fun...I have a Canon 6Dmkii and a Fuji XS-10 that are my main cameras but love the colours, contrast ratios and detail rendering of the old Olympus with the Kodak CCD sensor..it sits near my door and I often pick it up when going for a walk around the neighbourhood...even with the kit lenses it does a good job.
What lens did you use? As a former user of Four Thirds (and I still have that camera) I think you'll be disappointed shooting at F/11-12 due to diffraction.