I agree with Mark.
I think it's a good idea to test all three markets.
And you should get really familiar with the products that you want to develop
and know about the local market and which kind of product that they really want.
I think catchy website and charming design of the picture is the key to open up your markets.
Your own website is the main industry, the amazon and ebay store is subsidiary.
If you have any question, you're welcome to Communicate with Banggood Dropship.