I've been trying to give this particular artwork an embossed look with details, but I'm falling short. This is what I have:

[![enter image description here](https://i.stack.imgur.com/gBrjv.jpg)](https://i.stack.imgur.com/gBrjv.jpg)

I have been placing the image on a plane as a bump map, but not getting the desired effect.

The image in green is what I'm looking for:

[![enter image description here](https://i.stack.imgur.com/YfA8X.jpg)](https://i.stack.imgur.com/YfA8X.jpg)

Does anyone have any ideas?