Basically just wanting to know if there's a clear difference between these words. I get the feeling that テクニック is more like one person's own specific technique for doing a thing (entirely guessing here, but that's what it sounds like to me), while the others are more general. I also know that 方法 is quite general and perhaps just a more formal version of 仕方 (and that 仕方 probably requires a suru verb before it to clarify what method/technique it denotes), but I'm lost on the difference between 技法 and 手法. Could it literally just be that 手法 refers more specifically to hand-made crafts?
Would be really grateful if someone could a) confirm if my assumptions about テクニック and 方法 are correct (please let me know if I'm wrong), and b) explain the 技法 and 手法 difference. Thanks!