I've been doing this recently actually nakabenta na ko ng artwork ko, first artwork ko yun related sa cryptocurrency mainly sa bitcoin and successful naman yung transaction doon nasa sa inyo kung pano nyo gagawin yung transaction and i guess puhunan talaga ang tiwala at syempre knowledge mo sa pagtatransact lalo na at international iyon atsaka dapat yung mga trusted na tao lang ang binibigyan mo ng attention.
I actually saw your artwork in your post with the auction and I really liked it. It’s an awesome artwork with all the surrounding best coins. You have sold to a trusted person, TECSHARE, which is good also. I bought a mystery box from TECHSHARE and I liked the contents of it.I guess you just have to try to trust people here, and try to be sure as possible, use escrow.
Yes its better to have an escrow to make sure that the package is securely deliver to the person in other country although you should make sure that the person that gonna deliver the package should be surely trustful also its more expensive but you can adjust your payments then if it is successfully delivered to the person he/she will gonna have some trust to you and it can be order an item to you again and again
The trustworthiness would be a big factor with the escrow that you are using, making sure that one party receives the package first before releasing the item/payment. 
