Adjustments to Home page images and footer text

There are a few adjustments I haven’t been able to figure out since I switched to the Virtue Premium theme. They were fine before but aren’t now and I’ve probably just been staring at these issues for too long. I tried to find the answers on the forms but things I’ve tried haven’t worked. My site isn’t live and can be found at fireflyartglass.com/wordpress.

1. The logo gets really large in mobile mode. Is there a way to reduce this?

2. The background image behind the logo doesn’t seem to get bigger or smaller when the screen size is adjusted. In the mobile mode there is a big gap under the logo. Ties in with above problem.

3. The image I have in my slider doesn’t adjust to the screen size changes either.

I like how the navigation bars continue with the size of the screen when it increases. Is it possible for the images to do that as well?

4. Is there a way to remove the white space between the slider and the menu bar?

I’ve tried some css code I’ve seen others use but haven’t been able to be successful. Also, why doesn’t my css code work in my child theme? I’ve copied and unzipped the file I found for the premium theme child but my code only works when it is in the advanced settings in the theme options.

5. Is there a way to move the copyright text/footer to the other side?

Thank you so much in advance for any help you can give me.