It’s truly impressive. Obviously, Paweł is a master of Technic, the advanced mechanic Lego that allows anyone to create practically anything imaginable. His machines are fantastic.
The only problem is that Technic, like any other advanced Lego built, requires technical knowledge, actual engineering skills and a lot of design genius. Of course, at least you can learn the techniques. Once you grasp the basic concepts, you will be able to start building complex machines too.
Luckily for you — and me — Paweł has published a new 352-page colour book called The Unofficial LEGO Technic Builder’s Guide to speed up that learning process. There he reveals all his secrets, which are many. You can buy it at Amazon.