It's all about YOU!

Fashion is all about fashion, art, creativity and making money! Retail is all about making money by selling us stuff! Shopping is all about us spending money and buying stuff! Clothes are all about selling us an idea, providing a necessity or making us feel good/bad about our shape!
Image is all about YOU! How you look and feel is all about you expressing the real you, the true essence of you. Now before you start thinking that this is all a little "new age" and "out there" - think about it. Your clothes act as an introduction service to yourself. If you are a person who loves bright colours and textured fabrics, then by george that is what you should be wearing. If you absolutely love soft, floaty and totally romantic things - again, this is your style and ignore anyone who advises you to dress in another way.
By all means, find out which bright colours make you look sensational and which soft, floaty fabrics and styles best flatter you - but that is just detail. The overall look should be a statement of you. When you feel good in an outfit, you look great! When you look great, you can take on the world. (Hopefully this won't be necessary, but should it happen - then watch out world!) You will never feel great in an outfit, if you don't feel right! You might look great, but you have to feel it to get the entire experience.
Look at models (and who doesn't?) - they can look an absolte million dollars in something on a catwalk, but it is very rarely that you see those same "stunners" wearing those clothes in real life. Look great, sure; but feel right - maybe not.
The only time I concede the point is for bridemaids - although even then, I am not totally convinced. But, should your bride choose something that makes you look great, whilst feeling like a floral arrangement, then at least the photos will be wonderful! It is her day, after all. However, I still cringe at having to buy something I really didn't/don't like, just to keep a friend happy! (another whole bag of blogs in weddings!)
Be true to yourself, make use of the tools available from professionals (colour & style knowledge)and set forth and be wonderful. You are the only You that there is - don't just embrace it, celebrate it!!