Selling Art Globally: Easy and Not Easy

I tried selling my paintings internationally via the eBay global shipping program. I did sell my paintings but not internationally. Here is what I learnt and why I think in some ways it is easy and in other ways it is definitely not easy. Global Watercolour eBay listing - https://ebay.io/m/XNk1OI Orange ACEO UK only eBay auction - https://ebay.io/m/gMkpvQ