Hi,

1/ You see the space is too wide because you've changed the borders on footer social icons to the same as background color of the footer - normal, it will have a border like this

But, no problems, if you've adjust the borders like that, you can add more this code to Customize > Custom CSS to reduce the space between footer logo & footer social icons:

.footer-logo-copyright.footer-not-gotop, .footer-logo-copyright{ padding-top: 0; }

Also, please remove the space display above your logo image - here is your logo image - as you can see your logo image has a space on the top. I've cut it to help you, you can download the image from my attachment and replace with your current footer logo image.

2/ To change the footer logo width & height - the simple is to change the width & height for your footer logo image.

Best Regards,

PenciDesign