Header image not updated over all pages

Changed header image, from a dull mountain scene to a bright country scene with a cow and bright flowers. But this image is only reflected on the home page.
I have tried deleting the cache but it isn't updating when I navigate to the other pages outside of the wordpress development display.
I can see the image changed on the other pages while I am editing in wordpress but it doesn't update on the actual site link.
Please assist :slight_smile: I will open up my site for you to take a look, under support.