-avatar and -urlopen no worko

[gaussandhisgun]

So i recently discovered that Oysttyer should support using external commands to display images... But it does not.
Here is the command I run Oysttyer with.

oysttyer -readline -ansi -newline -verify -urlopen "w3m -dump %U | less" -avatar "curl -s %U > ~/.tw; termimage --size 20x20 ~/.tw; rm ~/.tw"

This is how it looks:

This is how it is supposed to look (at least, the command output):
-avatar:

-urlopen:

System, program and version info: