Minor help with Wordpress website - quick job

General information for the website: Marketing business Description of requirements/features: I have a few tweaks which I would like to make to my existing Wordpress website which should only take someone an hour to do. I have a site which I am largely happy with, but I would like to change the colour scheme (it's currently grey/neutral) and a bit bland. My rotating tweets from my Twitter account have stopped working - they weren't updating but not there is an error code (I tried to fix but clearly did it wrong!). My home page copy scrolls up over the header image and this means you can't read the copy properly. It needs freezing or something. Further down the line there may be additional work as I am in the process of setting up a new business, so if we work well together there could be lots more to come! Extra notes: