The general composition is pretty much the same, portrait photos of plant growth growing from bottom to top and sorta following the rule of thirds. Both photos also have strong reds and violets in them (the lower photo far more than the upper), which is the color I much prefer over so-called Olympus blues. Call these Olympus reds and magentas if you will.
Maybe it's my bad eyesight, but when I place the two photos side-by-side as prints and view them at a normal distance (not with me so close I leave nose-grease on the surface) that I find them, for all practical purposes, technically indistinguishable. I can't honestly tell you that the E-PL2's 12MP sensor is superior to the older Kodak 5MP sensor in the E-1, nor can I tell you that Lightroom 4.1 is superior to Lightroom 3.5. And I certainly can't tell what lens was used with either, not by looking, only by knowing through the EXIF data what was used with each photo.
If you're wondering why I titled the upper photo "Dark Day", that's because we've been getting a lot of heavy rain since last Thursday.