Parts in the engine compartment (empty control valve)

Hello, I have a Ford Escort GAL 90 PS bj 95 and I have to have some repairs. Now I wanted to ask if someone could mark me a few parts in my engine room on the photos so that I could understand better what you might be able to change yourself and what is net. I should definitely know where the idle control valve is located. That would be great if someone had more idea of the Escort like me. Thank you