Ugliness test

I'm making a new language. I think I have already fixed most of design flaws, but I need to check it first before writing a real interpreter.
Post your code snippets, I will translate them to my lang and we will decide whether they are beautiful enough.

>>27

=>
::
{{n} {} factorial[n]}
display[#format : "z = ~s, z* = ~s, |z| = ~f, arg z = ~f",

1,2| What?
3| Empty {}? Beautiful as fuck!
4| Overcomplicated printf sounds good!