Damn this is incredibly professional... Mind me asking any resources you recommend to learn about these as a gamer who just got interested in bondage looking for a more immersive experience.
Hi, I found this picture to assist you in your quest:
Top left corner is what I call a loose column tie. You can tell it's loose as the rope bunny is unable to touch her forearms consistently from wrist to elbow.
The third girl on top is a classic box tie, but that one is especially insecure without shoulder harness to keep it from sliding down.
Top right corner is a beautiful variation of a box tie called takato kote. I'm unable to confirm the tie to be invulnerable without the shoulder harness, although the way her forearms are kept in a hammerlock position lends us hope twisting free will be next to impossible as it is.
The second girl on the bottom is a so called back prayer tie. This one is not the pinnacle of achievement, but appears to be pretty close. I would train to touch her elbows together if I were her, but nevertheless it is on the rigger to bring the forearms as close as possible without injury. Lastly, don't forget to secure the wrists to the collar or the shoulder harness that is absent for no good reason in this tie.
The second to last girl on the bottom is a cobra, and is the only tie present that starts with the binding of the wrists in front. Note the square lashing securing the hands: it must be done this way for security every time she crosses her hands for binding as opposed to keeping them parallel. Don't rest on her looking helpless, it's a rather trivial tie to defeat.
Remember to never over-rely on friction where structure was not imposed dutifully, secure the knots as far away from her fingers and her mouth as possible and never tie the girl's hands in front. You may tie a man in front as a token gesture of dominance, but a woman must have her hands in back at all times you use the rope on her. She will thank you for being so diligent. Learn the available range of motion for human limbs and think how best to limit that.
Hope this helps, bye for now.