Looking for a 3d animation expert

Job ID: 35493287

Budget: $30 – $250 USD

Hi, there?
I need to change my current horse's running animation clip to realistic one.
The model itself is fbx format with textures and one animation clip.
The current running animation clip doesn't look realistic especially the back two legs. It looks like puppy horse's movement.
And I need one more animation clip in plus : That's "Idle" animation clip. It just should look like simple.
Note : The result model should be fbx format and should be compatible with Unity.
Reference Video : https://mega.nz/file/I802WJxR#6Qi0WOCJ7X8o80qFrKO-rT16BN3Zv5ipvh7CjLEVZtE
Thanks.