Fotor’s Beauty Touch Up Tool offers "Blush" tool to add a color to your portrait. Follow these steps below:
Step 2: Under the "Beauty" menu, you can find "BASIC" functions, and click "Blush" feature.
Step 3: Click “+” button on the canvas to zoom in your face, then choose one of colors from the preset palette or click “+” to add a new color as you like.
Step 4: Brush your face to apply the blush. You can change brush size and brush intensity by sliding the bar, and you can use the eraser to remove the mistake.
Step 5: Press the blue "Apply" button when you satisfy. Then you can export the photo to your computer or share it on the social media.