I figured this out!
1. Uploaded all my images to the Media section in PowerApps.
2. Created a collection of my images.
ClearCollect(colSwooshes,
{Value: "Name of Sponsor1", Image: Related Image1},
{Value: "Name of Sponsor2", Image: Related Image2})
3. Added an Image box to my PowerApp
4. Added this to the Image property of my Image box
LookUp(colSwooshes,Value = lblSponsoredByLong.Text,Image)
The "value" column in my colSwooshes matches the lblSponsoredLong label.
Seems to be working fine but am open to any suggestions for improvement!
As always, @WarrenBelz appreciate your input. You are always so very helpful!