To give the head a more goblin-like appearance, you need to make the cheeks and eyebrows more boney. However, to do this, you need to adjust both cheeks equally. You can do this with the transformation tools’ Reflection settings.
To modify both cheeks simultaneously
The vertices appear on the mesh.
A colored falloff appears on both cheeks.
Both cheeks are transformed identically and appear more boney.
Now you can adjust the eyebrows to make the goblin angrier.
To rotate the eyebrows
All the vertices on the same loop are selected between and including the two vertices.
The selection of vertices on the other side of the reflection seam does not appear complete after this step. This is normal and is rectified in step 4.