Khaki would be too casual, but black Capri's with some sort of a heel would be nice just be sure to buy a blouse or shirt that will go well with the shoes. Perhaps the same color as the shirt. Even if you have white sandal. Don't be afraid to wear an ankle bracelet.
Costume jewelry can really up the look for a wedding. Black is fine as long as you wear it with a light colored shirt or its not totally black, maybe frilly tank top with lace, or even a white short sleeved top. Check out any fashion web site and look under misses selection then tanks & camisoles this will give you a pretty good idea.
Although some of them are too casual those aren't the ones I'm talking about! I specifically would choose the black and white tank with the black Capri's or even the bluish colored one look for stuff like that with hair and makeup. With your hair done you would look great. Try something with chiffon or even try any local Store. If they don't have want you are looking for then go on the internet and order something from there.
Get press on nails and remember to sand your nails down before you apply the glue. Don't paint them a light pink such as the sally Hansen kind. If you get press on nails make sure that are clear so that way you can paint them what ever color you want.That way you don't have to worry about the color of your nails not match the color of the clothes that you choose to wear.
The proper under garments can make all the difference in how your clothes look on you. In terms of panties, nothing is more unflattering than seeing panty lines under your slacks!! That's especially true in the summer when you can get a double whammy...actually seeing through light white pants as well as having the textural bulge that some underpants give!! I am a huge fan of thongs! For some people they take some getting used to and some are more comfortable than others. You'll have to try them and see how you feel. They make visual and texturally bulging panty lines obsolete...great for your look in clothing.
As for bras, it's a great idea to get your bra professionally fit! This may sound a bit bizarre but there are great women out there who do this for a living in lingerie shops. You would be surprised at how many women walk around wearing the wrong bra size for years!! A bra too small around the back provides bulges that look ugly under sweaters or t shirts. Cups the wrong size result in bulging if too small and lumpy wrinkles and gathers if too big.
Anyway, once you have the proper size, here are some things to look for: Go for unadorned and seamless cups. (While lace and rosebuds are awfully pretty, they don't permit fabric to lie smoothly). I love the bras at Victoria's Secret that are unpadded but nonetheless have opaque, shaped cups like the IPEX demi bra. I recommend you take a look at their web site for some ideas or stop into one of their stores and try some different styles on. Here's a tip, try the bra on and put your top back on to really see how it looks!
Own a variety of different bra cuts...one more plunging, one with race backs, one with narrower straps, one strapless, etc because different tops and dresses call for different bra styles. Get a couple of the basic style and then one of each additional style should do it! You just never want your bra or its straps to show! Some people might thing that it is not very classic that a woman's bra straps are showing.