lens - camera - aperture - shutter speed - ISO - lighting - tripod?
all those things and more can really help when people come to give advice for your shooting - no sence in getting a long answer about tripods and custom settings if your using handheld point and shoot cameras now - not to say such cannot work, but the methods of operation are different.
As for your work I think you have a creative eye towards your photos - each of the 3 shots looks like you put some thought behind them before pressing the shutter and that you have likley carried this through into (as best as you feel you can) your editing of said shots as well.