diff --git a/Assets/Behaviours/BoneBehaviour.cs b/Assets/Behaviours/BoneBehaviour.cs
index 5d5dbcd..d86b700 100644
--- a/Assets/Behaviours/BoneBehaviour.cs
+++ b/Assets/Behaviours/BoneBehaviour.cs
@@ -65,17 +65,12 @@ private void HipUpdate()
         
         private void RShoulderUpdate()
         {
+            var direction = _transforms[PoseLandmarkType.RightElbow] 
+                            - _transforms[PoseLandmarkType.RightShoulder];
+            var absolutelyRotation = Quaternion.LookRotation(direction);
 
-            var relativeRot = _transforms[PoseLandmarkType.RightElbow] - _transforms[PoseLandmarkType.RightShoulder];
-            relativeRot.Normalize();
-
-            var hipRot = _animator.GetBoneTransform(HumanBodyBones.Hips).rotation;
-            hipRot.Normalize();
-
-            var interal = Quaternion.FromToRotation(relativeRot, hipRot.eulerAngles);
-            interal.Normalize();
-
-            _animator.GetBoneTransform(HumanBodyBones.RightUpperArm).rotation =  interal; //Quaternion.LookRotation(relativeRot + hipRot);
+            _animator.GetBoneTransform(HumanBodyBones.RightUpperArm).rotation
+                = absolutelyRotation * Quaternion.Inverse(_animator.GetBoneTransform(HumanBodyBones.Hips).rotation);
         }