I had the basic heart shape and I drew a symmetrical floral pattern inside.
I started carving out the outline between the heart frame and the flower outline.
Always, the outline must be cut with the chisel held vertically.
The inner structure of leaves is done similarly, just the vertical cut is done just at one side to create shading.
Using only U-shaped (and quite big) chisel is tough sometimes :-) For V-shaped lines I always use the edge of chisel so that the V is sharp and smooth.
Carving is finished.