There is no tutorial for the Ryujin 3.5 that holds your hand. There are only forums, crease patterns, and the silent rage of a Sunday afternoon. Good luck. You will need a bigger sheet of paper.
: The most comprehensive guide is the 12-hour tutorial series by Fearlessflourish on YouTube, which functions as a digital diagram for the entire model. origami ryujin 3.5 tutorial
Once the "base" is collapsed, the dragon will look like a thick, zig-zagging stick. Shaping gives it life. There is no tutorial for the Ryujin 3