hi tichy. you did some great shots. i like nature- pics too (downloaded almost all of your content).
i would like to give you a tipp. It is good to make the objects on a pic sharper than the backround, but i think, you did this too extremely! On some pics parts OF THE OBJECTS are not clearly visible.
I think you'll use manual zoom and focusing. This is the way I use to control focusing: by holding the cam near to the object and zooming in less (like u do), you'll obtain just a little part focused, and, staying more distant- zooming in more a bigger part will get focused well.
SO: stay (just a little little bit) more distant making your next shot!
this is my opinion, everyone likes different pics.

Thanks for comment, good tips are always welcomed :-)
There is a problem: to have a better sharpness or bigger magnification, magnification is very tempting, but you are right: not always it is the most important.
Surelly more megapixels are needed! ;-)