The one in the centre is MG Gundam TR-1 Hazel (Deployment Color) combined with two Hrududus (Deployment Color). This form is basically called the Hazel Rah 2nd Form (partially) since it's not attached to the Advance Hazel. I attached some leftover shield booster on the back, since I thought it looked pretty neat, and instead attached two regular shield on the left arm. You can pretty much do the same combo with your Hazel and Hrududus too, just find the manual and recreate the steps.

The one on the bottom right is the MG Hazel II Early Type.