Process -
- Image>Adjustments>Threshold
- Select>Colour Range (Pick the dark shade in image)
- Copy and paste selected parts.
- I then put the copy and pasted image on a white background.
- Created a colourful layer
- Turn colourful layer into clipping mask.
- Using a paint spatter brush and the eyedropper tool, I went round the image adding splashes of colour that matched that selection on the image.

I did this to help learn more about Photoshop and try the expand my creativity.
The image of the geese is my own photo I had taken.