Draw a small irregular oval or mound shape for the bush outline
Add a few rounded bumps along the edges to make it look natural
Sketch overlapping cloud-like curves inside the outline
Vary the size of the curves to create depth and texture
Add a few short curved lines near the bottom for denser foliage
Darken some areas to show shadows between leaves
Add small leaf clusters or tiny curved marks throughout the bush
Refine the outer edge so it looks full and uneven
Erase any unnecessary guide lines
Shade lightly to finish the bush shape