Graffiti Backdrops ( A Tyburn )

Structure
Tyburn

In this structure called the Tyburn the first four lines of the poem must rhyme.

They must also be descriptive words .
The last two lines of the poem must also rhyme and have the first,
second,third,and fourth lines as the 5th through 8th syllables

My Example

Graffiti Backdrops
By Paul McCann

Steamy .
Dreamy .
Creamy .
Greeny .
In graffiti's steamy dreamy scrawls,
words are left on creamy greeny walls .