Help with creating a decal from scratch.

I’m new to using decals, and inexperienced with creating materials. Despite this, I tried experiment with decals by trying to take a 2d image made in Photoshop and turning it into a decal. After several searches and experimentation, I can’t figure out how to get it to look like the original image. Any advice?
Original Image:

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How the material looks:

130181-screenshot00000.png

The Material Blueprint:

How the Decal Looks: