Once the UV maps were finished I drew the texture on it and used PSD network to update it on my character. I used flat colours because I wanted it to look very simple.
The next step was to make him pose. For this I created the skeleton using the joint tool. Giving the joints a specific hierarchy permits to simulate human articulations. Also, it is recommended to add some controllers on the joints. Then it needed a skin to make the body follow the skeleton movements. That process is called skinning, and it consists on telling Maya which vertices belong to each joint.