Listing a product with colour variations but with same product ID (EAN)

Hi
I am hoping someone can help me. My product has three different colours, Red, Orange, Blue. They are exactly the same, except for the colour. Each has the same product ID (EAN).

I am having a nightmare trying to list them I created the parent listing and added the three variations of colour on the variations tab. So I believe I have created the child variations.

This gave me three different SKU’s but the same ASIN number, presumably because I have had to enter the same product ID. Now it has created three separate listings when I go to my Manage FBA inventory. When I go to Manage Inventory I can see the 3 variations listed

I cannot upload different colour images to each variation, each time I add one it shows for all three colours.

How an earth do you do one listing with three variations which have the same EAN so that you get three separate ASIN’s ???

so confused, any help would be appreciated