they look better fowler002. Where in focus they look sharper, and apologies if you took the criticism the wrong way. This is one of my favourute sections of the forums, people are pretty helpful with constructive criticism, and just lurking i have learnt a lot.
I think its just that you have taken shots in difficult situations, low light, or zoomed right in.
Have you had a play with manually picking the focus point (not manual focus - Instead pick the AF point) The pic with the drummers, to my untrained eyes the drum is sharp and then the drummer gets a bit soft, probably due to depth of field (did you have the lens aperture quite open to grab as much of the light as possible?). without seeing you setting, it may also be that the shutter speed is just too low for hand held too.
I am playing with a nifty fifty at the moment, and its SO easy to focus on the wrong parts when using straight AF, after a week with it i learned that to shoot with a large aperture i needed to either pick an AF point or MF. normal AF gave pretty poor yields, I am not joking when i say less than 1 in ten was any good to pp. Outdoors in light, a smaller apertures (F7+) will mean most of the frame is in focus. too high an f number and it goes soft again (diffraction?)
- by the way, i have had a DSLR for all of a couple of weeks, so am probably just as new to this as you. MY low light shots are horrible at the moment, but i have a cheap flash coming to play with.