In English the metal technique where the metal is shaped from the back with dapping punches, burnishers and other tools is called "Repousse" (yes, we use the French word). In English, Engraving is only when you remove material with cutting tools to make the design. "Chasing" is when the shaping is done from the top side, and it looks like you did a little of that too on this piece.
You're VERY welcome. I'm glad I could help. I only speak english well, and I know how hard it can be to find the right word when trying to talk to artists who don't speak much english. So I try to help when it is going the other way.