Attaching anim to this script

Hi all,

Here is my rather basic script for making my player move on a 2d mobile game i am creating. I am not used to developing for a mobile game and am struggling to add a animation upon the texture being pressed. Here is the right control. If the Right arrow is pressed it will replace it with a different gui texture and move the character to the right. This script is attached to the original gui texture.

 using UnityEngine;
 using System.Collections;
 
 public class left_Movement : MonoBehaviour {
     
     public Texture2D button1; // Inital texture for the button
     public Texture2D button2; // Once pressed texture
     public GameObject Player; // Declares the player from a gameobject
     public int speed;
 
     void Start () 
     {
         guiTexture.texture = button1; // gui texture is made into button1
     }
     
     
     void Update () // If the screen is touched 
     {
         foreach (Touch touch in Input.touches)
         {
             if (guiTexture.HitTest(touch.position) && touch.phase != TouchPhase.Ended) // If the gui texture is touched then
             {
                 guiTexture.texture = button2; // The button changes to button2
                 
                 Player.transform.Translate(Vector3.left * speed * Time.smoothDeltaTime); // Player slowly moves to the left
                 
                 
             }
             else if (guiTexture.HitTest(touch.position) && touch.phase == TouchPhase.Ended) // until the player stops touching the screen
             {
                 guiTexture.texture = button1; // gui texture reverts back to the original 
             }
         }
     }
 }

My current anim set up which looks like