I would approach this slightly different than how you have it currently.
If you have the photoshop file, I'd save this as 2 different images, one being the orange line with only your text/logos/description/country ect, the other being just the nature background with nothing on there. This will allow it to show far better in responsive and would be easier to work with.
Once saved as 2 images:
Style Properties -. Header and Navigation -> Header Logo Path: logo path to the orange outlined with your text/symbols
Style Properties -> [XB] Header and Navigation -> LogoBlock PAGECONTENT
Set the background image to the nature image.