Try http://imgsafe.org/.

Upload your images there, right-click on the uploaded image and open it in a new tab. Take that URL and post that in your posts. It'll show up right away. Check out my post that I made using the same method to get an idea about how it'll turn out:

https://steemit.com/highspeedrail/@thenerdydeviant/high-speed-rail-link-between-melbourne-and-sydney-proposed-by-private-company