Hello, my name is Daniel, and I'm a bilingual web developer (English and Spanish)
I'm native to Spain, but I'm currently living in United Kingdom, where I have been working for over 2 years as a Web Developer.
The translucent header is rather simple to do, I have a translucent header working locally so it should be as simple as implementing it to your website. Just feel free to open a chat window and let's get it done.
Sincerely,
Daniel