Great channel!:) I like the editing and the fact that you show the diagram of the step too! One thing that you could do is to credit the designer, if the model isn't traditional.
Thanks for the advice! I got only one question. Do I need to ask for permission from the autor or only write the credits? I'm new to this one so when you mentioned the crediting issue this dilemma came up for me.
From a matter of courtesy, you should ask the author for permission, before releasing any type of 'diagrams' or videos of his models. In addition, you do need full credits - Model Name, Author's name, location where author's diagrams were published [if available], as well as the date for the release of the model or diagrams, and the date for the release of your diagrams or models.
Just to add to the 'confusion,' this courtesy also applies if you reverse-engineered a model with no diagrams, or even created a new model that is derived from the work of another author.
If you consider Origami to be an art, and the designer to be an artist, then the idea is to show full respect for the artist, avoiding hurt feelings as much as possible.