I am repeating, somewhat, what others have said here, but trying with examples. Yes, do read the manual, especially about using the 'close-up' (macro?) button, the one with the little flower on it. If you look at your last photo posted, the hardwood flooring is in focus, and your dick is blurred! The same with several others, where the wall, etc. behind is in focus, and dick blurred. All decent digital cameras have a close-up setting, and all have a focus lock--hold the shutter button down half-way, to make sure what you want is in focus. I would advise you to keep your camera at the highest resolution setting, and the highest 'quality' setting, since with today's very inexpensive, high capacity memory cards, and most emails and other sites accepting high resolution photos, there's usually no reason to use lower settings. You can always make photos smaller, but can never add resolution that wasn't there!

I'm sure you already know this, but make sure that your camera is in "Macro" mode when doing the closeups. I have a Canon and most of their models all have the Macro setting.