Various Issues

Hi Sakin. First off, I would like to say that the support offered through this forum is fantastic; that alone instantly made up my mind to buy the Pro Version of Catch Responsive. Here is my site: http://www.wiedenpark.at/ I'm quite new to WP, but have found many answers to questions through this forum, however, I am really struggling with some things: 1. How can I reduce the size/change the colour of the black box surrounding my featured image slider text? At the moment it is quite large and covers too much of the image 2. How can I reduce the height of the slider background? At the moment, the green background sticks out below my slider image, and this means there is quite a large gap between the image and the start of my text. 3. I am using two widgets for the footer area 1 and 2 (Kontakt and Impressum). Is there any way I can make these two more centralised? 4. Is there any way I can remove the page search bars completely? Mainly the one in the menu above the slider. 5. I know this isn't a CR issue, but I currently have a Mailchimp form on the page. Do you know if there is any way I can keep it exactly how it is, but centre it? Apologies for all of the questions, but I cannot find answers anywhere. Thanks for all the help so far!