The photos YOU pick tell me as much about you as the clothes you're wearing or the poses you choose. So they should be a reflection of your personality and the image you wish to project. Your website is the #1 tool to communicate your brand image, and your photos are the most important part of your website.
Now, as someone that has done a fair amount of glamor photography, I know that getting the right photos is a lot easier said than done. It takes time, money, and the right photographer, and those three things aren't always readily available. Whatever way you go, it helps if you have some idea as to the brand image, or objective, you wish to communicate to visitors of your site.
A lot of women try to appeal to everyone, and that's understandable since they don't want to limit their market. But in doing so, they sometimes forget to tell the customer who they really are. You can't be all things to all people, so decide what's most important to you and emphasize that.
For example, I know of several ladies that say they can be a Dom or a GND. Well, maybe they think they can, but there's no way I'm seeing one of them if I'm not also into an assertive woman. Because in my mind, they're true nature is to dominate, and I don't want someone that is pretending to be someone she isn't. In marketing we always say a brand can only stand for one thing, and those ladies are sending mixed messages to the guys who visit their sites. There are many other examples, but I'm sure you get the idea.
As for specifics, I always assume (like most hobbyists) that parts of your figure that are being hidden, are being hidden for a reason. So if you've got great abs, don't hide them with a sheet, for example. In fact, I make as many decisions based on what is hidden as on what is shown. But there are guys that like all shapes and sizes, so an accurate representation of you is more important than a highly glamorized one that looks like someone else. After all, the worst way to start a date is to feel like the woman that opened the door isn't the same one as in the pictures.
I think nice lingerie is always the core of any portfolio of pictures. Others include a little black dress or other street clothes that you find particularly flattering, bikini, and nudes. The poses make all the difference. I can take a fully nude woman and pose her in such a way as to show no more than a bikini, yet, the nude shot give off a totally different vibe. So it's worth putting some thought into it. And if you can afford it, professional hair and makeup can really make a difference too. In LA, where I live, many of the top ladies will hire pros to take care of that for them, and it shows in the final product. But if that's not your style, that's OK too- always be yourself.
I haven't seen your current site, so I'm making these comments in a general way, as opposed to critiquing anything you may have on your site.