Armored angels vanquishing serpents draw on the Archangel Michael tradition, symbolizing the triumph of order over chaos, protection, or good over evil. People choose this design after overcoming personal struggles, addiction, or hardship, treating the serpent as a stand-in for whatever they defeated. It also reads simply as a guardian figure, worn for protection rather than any specific victory.
Where it sits
This is a tall, symmetrical composition with the wings spreading wide at the top and the serpent coiling to a point at the bottom, so it suits a back, spine, or full thigh where that vertical flow has room to breathe. It would also work down the length of a forearm or shin if scaled narrower. Shrinking it for a smaller area like the upper arm would blur the armor engraving and lose the sword's linework against the serpent scales.
Making it yours
Ask an artist for any of these.