Okay, I am not a photographer, nor will I apply to be as such, but some friendly tips from an amateur
1. Lighting! Make sure any pictures have the correct light, avoid having to use the flash where you can, the use of mirrors can potentially help with this to avoid any expensive equipment, your object should preferably have more light on it than the surrounding so it can stand out...shards of light through cracks...i.e. a curtain can help in day time
2. Background! So whatever you are shooting...make sure the background doesn't over power it, if doing a self portrait, perhaps spend a minute looking at the scenery behind, remove anything that looks cluttered, or angle the picture so you have a more solid background to stand out
3. Colour! Consider using techniques such as Sepia to produce a more dramatic image...though in these shorts, dark versus light will work especially well for contrast.
Make sure there are no clashing colours that could be distracting, unless you are going for a bright and vivid effect.
4. Emotion! When taking a self portrait...think about the mood you want to convey, make sure your facial expressions and body language reflect this, again, certain colours in the background or with clothing can emphasise, i.e. Red for Anger/Passion, Blue for calm, Purple for power, etc...
5. Think of the full frame! Okay, so this ties in with background...but consider the full frame of the image, what can be seen behind you, how much do you want people to see? Is the image symmetrical, i.e. Is it straight, if you are at an angle, should the image also be?
6. Hair and Makeup! So, when doing a self portrait...tie this in with emotion, make your look reflect what you want the image to say...and each picture should have a message to share with the observer, maybe have one word in mind or a small phrase that you want to convey and make the picture embody this!
7. Less can be more! So when taking glamour shots...you don't have to show everything certainly...but perhaps teasing little glimpses of yourself can add to the erotic flow...have items in between you and the camera that may strategically hide certain bits, wear items/be wrapped in a way that you tease certain things but only show perhaps a small amount of them...them of course being things that people wouldn't normally see if you were walking around!
These are some of the things I would suggest that I may follow...not that I do a lot of self portraits haha, but hope they may be useful