A rider (8)

After all, I sculpted the model with ZBrush then made normal maps and ambient occlusion maps with mode.
The pipeline is like this.
1)Freeze a part of the model in modo, then export.
2)Sculpt it in ZBrush, then export.
3)Bake normal maps in modo.
4)Bake an ambient occlusion map with a model with a normal map in modo.