Btw, was a har learning curve for me also. I made a few crappy ones also. But then I practiced. Good tip, is, not oversaturate it, and not overdo sharpening. Sharper is good, Skincolors should be natural. Vegatiation should make natural. Compare to real photos, and u see what I mean. ;)

No offense, I think you should work on the preset making abit and look what others are doing. I do not mean to offend you. I just advice. Your presets is NOT good to look at.