I want to do a BibLaTeX tutorial (Video, YouTube) with a step-by-step explanation using TeXmaker and also the command line. Would it be appropriate to show you guys here my example before I do the tutorial? I am not 100 % sure if I understand all the encoding subjects correctly.
I don't think here would be a good fit as meta-type questions typically ask questions about the main site. So questions here would be with regards to TeX.SE, which yours seems to not be.
If your aim was to ask on the main site, then it seems like you don't really have a question (at the moment)... you just want some feedback on a possible tutorial.
Rephrase your current tutorial in the form of a question and then post it, together with your tutorial (with code and pictures and links and such) as an answer. That's more like it.