Creating MouseOver Effects using Object Classes - excel

Question

I am attempting to assign mouse hover effects on my images on the form based on the TAG attribute that I assign to them. I want only certain photos to have effects applied when the mouse hits them. My difficulty is getting the code to work. I have no issue with it when you are making a new object, but this code requires a loop through controls to find the ones I want the feature applied. I have attached the code to hopefully explain the issue. Any help would be appreciated.
CLASS MODULE cls_ProjectManager_Controls
Option Explicit
Public WithEvents zImage As MSForms.Image
Private index_image As Long
Sub SetImage(ctl As MSForms.Image, ByRef Index As Long)
Set zImage = ctl
index_image = Index
End Sub
Private Sub zImage_MouseMove(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Single, ByVal Y As Single)
zImage.BorderStyle = fmBorderStyleSingle
End Sub
Normal Module
Option Explicit
Private pmImageCollection As Collection
Sub initializePropertyManagerControls()
Dim xImage As cls_ProjectManager_controls
Dim x_image As MSForms.Image
Dim ctl As Control
Dim index_image As Long
Dim i As Long
'check that collection is not already empty, if not empty; set the index counter
If pmImageCollection Is Nothing Then
Set pmImageCollection = New Collection
index_image = 1
Else
index_image = pmImageCollection.Count + 1
End If
For Each ctl In frmMasterForm.form_multipage.Pages(2).Controls
If ctl.Tag = "eff_Small_Button" Then
Set x_image = UserForm1.Controls.Add("Forms.Image.1")
With x_image
Set xImage = New cls_ProjectManager_controls
xImage.SetImage x_image, index_image
pmImageCollection.Add xImage
End With
index_image = index_image + 1
End If
Next ctl
End Sub
As you can see it adds the items to collection, but the last effect(addition of border) does not trigger. I have tried rewriting the code from my readings on other similar posts, like this one
Excel VBA Which UserForm Control Triggered Shared MouseOver Class Event? but this code creates controls during the runtime. I am new to the use of Classes so I am unsure how this affects my code.