1. Open Fotor online photo editor
2. Under "Effects" choose the "Color Splash" feature
3. Choose the brush size and opacity
4. Apply the brush to the areas of the photo you want to highlight
5. Hold the mouse down to see the red color path and let go of it to see the color
6. Not to worry, you can use the "Eraser" to make any corrections!
7. Don't forget to click "Apply" to save