when I reviewed the images. There is a difference in the "creaminess" of the bokeh and I don't know if it's the full frame (I had to open the lens more to get this effect with the 7D) or the camera model per se. Obviously, there's more capability with high ISO's. The lens is the one I've used before, but this time I didn't use the 1.4 extender (maybe more sharpness?). Apart from that, no difference in PP approach. Supposedly, the camera would have probably get better IQ with the 100 Macro, specially using 2.8, but I never got to test it (a good excuse to go back). #2 is actually a seed: Pterocarpus tree, pretty common here. #4 was an educated risk.
Thanks a lot Jeff.