Most importantly - trust yourself when putting your outfit together - if you feel uncomfortable with a look then it is not right for you. A big part of how you look in an outfit is how you feel in it! They are just clothes - have fun!!
Embrace the turtle neck - it is simple and adds balance to the wide leg pants that are fashionable right now. You can highlight a special necklace or chain over it,it is a great layering piece and adds warmth when it is cold.
Consider your winter coat part of your outfit - we all have them in our closet - bring them out! Do something different to make it more exciting. Add an interesting brooch or scarf to update.
Mix prints - a python print with floral - why not? Just make sure that they have something in common - such as colour or scale.
Pull out some of your blazers that you haven't worn in a while! If it is long wear it as a dress with opaque tight (or with bare legs if your legs rock). Add a belt to it to update the look. Wear it with your jeans to add sophistication.