I have 4 bridesmaids who are all very creative and I already pretty much know exactly what I want. I have already bought most of what I'll need and the rest will be DIY. Do I need a wedding decorator? What all do they do? Do they put up/take down decorations or just give you the ideas? Also, how much do they typically charge? I know what flowers I want and that's pretty much all I'm missing, but my mom is scared that without professional help, it won't look good enough. What do you think??