Usage patterns
〈物〉に技巧を凝らすto lavish elaborate technique/craftsmanship on something
This vase has exquisite craftsmanship lavished on it.
技巧に富むto be rich in technique/skillful in execution
His performance is rich in technical skill.
技巧を尽くすto employ every possible technique
The craftsman used every technique he had to create this piece.
技巧的な〈物〉a technically skillful/elaborate (thing)
Technically elaborate writing can sometimes be hard to read.