With Molla you can be showing more than one product images with color, just need to do these steps: 

Step 1. Creating the product:

Step 2:  Click "Upload Image" to upload the images 

Result:

Step 3:  Click "Add Variant" to add the variant for this product because this product comes in multiple versions, like different sizes or colors:

Enter  Color for the Variant section:

+ Color: Black -> Pink -> White -> Olive

Step 4:  Click "Save". And here is the result after add variant:

Step 5:  Final, from your Variant, you need to choose the product image for the  variant color:

Step 6:  Click "View" product to see the result

Result: When you select a color, the image will display similar to that color.