This image was created by Stable Diffusion with the following prompt:
Prompt – Deer with huge antler looking at the camera
Negative prompts – (worst quality, low quality, normal quality:1.8)
Use the Quick Selection Tool to select the antler.
Create a new layer and fill it with light blue.
Go to [Filter -> Blur -> Gaussian Blur].
Right click the layer to add an Inner Glow Layer Style like this.
This is Color Overlay Layer Style.
This is Outer Glow Layer Style. Please adjust the color settings for all Layer Styles to customize the effect.
Create a new layer in between the two, fill with black, and change the blend mode to Soft Light, and decrease the opacity.
This is the end of the tutorial. 🙂