Help with adding Image

i am trying to change the page header the coding on the old one is

I’m trying to change it to

BUT it will not show the image on the home page when you review it
I am new to WordPress.. been trying to learn it as I go…. most of the changes I’ve made have worked okay.. but for some reason this one is not working
the old image I have displayed is the same size as the new one is…

thanks,
Barbara

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