They look oversharpened from originals that were not that sharp to begin with. Did you do anything in post to these images other than cropping?
I did sharpen them. The leaves were sharpened only slightly, but one problem with them is the center of one leaf at least looks slightly out of focus, which is possible because the light wasn't too good. The parrots were a bigger problem, actually a bizzare take since I couldn't get next to the cage, so I took a series holding the camera at arms length, aiming for a gap in the wire mesh. Less sharpening didn't make it look any less crude, it's just not a clean image by even tiny camera standards. Mostly I posted it to show how small a space you can shoot through with the small lens of the LX3.