The phoenix represents rebirth, resilience and transformation, drawing on Greek and Chinese mythological traditions of a bird that dies in flame and rises renewed from its own ashes. It is a common choice for marking recovery from illness, loss or a difficult life change. The blue flames beneath it here are unusual, since phoenix myths typically use fire, so some may read this as merging fire and water symbolism, or simply as a stylistic choice rather than deeper meaning.
Where it sits
The symmetrical wingspan and downward tapering tail give this a triangular shape that suits the upper back, chest plate or a large thigh piece where the wings can spread fully. It would also work well down the spine or centered on the sternum for the same reason. Shrinking it below forearm size would blur the feather linework and lose the scale detail on the body and the sunburst circle behind the head.
Making it yours
Ask an artist for any of these.