1) Open your image with photoshop, i’ll be using this one. Feel free to use it to follow along easier.
2) Go to Adjustments(on the side panel) > Gradient Maps. Click on the Gradient Map icon.
3) Click on the drop down menu & select the Violet & Orange gradient.
4) Make that gradient layer “Color” in the blending modes drop down list.
5) This is my final product.