It must just be me but I can't understand the logic behind these posts. Quite frankly, who gives a crap what he shoots, the advice you guys are giving is not good advice. And the pompous egotistical nonsense, it's really got to stop.
Pkilla, here's the best advice anybody can give you, and it's not meant to hurt, it's meant to help:
Learn the basics of lighting. None of your shots in this thread are good examples of good skill and knowledge, but it's not a bad thing. Most of the egos around here forget that they started on stupid like everyone else, and they're not the photographic gods they think they are. I prefer to offer good, honest information, and helpful advice, when I can. Learn the basics of lighting and I'll bet your images will greatly improve.
I just got my 17-50mm last week and so far all I've shot is stuff in the house. And believe me folks, I'm not lacking in skill or knowledge. Sometimes people want to stay inside, sometimes people want to shoot what's right in front of them. It's not your place to tell them they can't, and it's not your place to treat them like crap for it.
Pkilla, if I were to show you shots from my lens, you would see no difference between my subjects and yours; I basically just grabbed stuff around me and shot it. The difference you will see is the lighting. Even with a wide aperture lighting has to be good enough for the camera to see your subject. Using a high ISO helps but sometimes isn't enough. My suggestion is this: Learn the basics of lighting.
If you don't have off-camera flash then try something simple, like shooting in the bathroom. Most bathrooms have good lighting, and since it's a confined space the lighting is brighter than other rooms. Put a subject on the bathroom counter and set your camera to AV. Pick an ISO around ISO400, pick f/2.8, and see what the camera picks for shutter speed. Or, do the same thing but do it directly under a desk lamp. Don't worry about color temperature or white balance, just set to AV, set your ISO and aperture, and see what happens.
Even with a wide aperture and even with stabilization there's still got to be a certain level of lighting for the shutter speed to be adequate enough to freeze motion, whether it's subject motion or your body motion. At wider apertures the slightest motion you make can make a huge difference in your images. The depth of field is small, so any waver or sway that your body makes can easily change the focus point, which can make your subject look out of focus. In low light put the camera on a tripod, set the camera settings you want, then take a shot. Then, under the same conditions shoot the same shot hand-held. See how much difference there is between hand-held and tripod-mounted, you'd be surprised to know there could be a big difference.
I'll stop for now, test out what I've said, see what happens. There's nothing wrong with posting images that people look down on, it's the only way we'll learn and get better. It's not the stellar shots we take that makes us better, it's the crappy ones. But, try out some of the stuff I've said, see how it works. Make sure you always have adequate lighting for the shots you're taking.
And a good trick if you don't have off-camera flash is something I learned recently on this forum. It may sound silly but it actually works pretty dang good: Using the pop-up flash, hold a spoon under it so the flash bounces into the room instead of hitting your subject. See how it changes the whole dynamic of your shots.