comma before present participle: describe the picture, referring to

[rudgus]

Look at the picture below, and describe it as detailed as possible, referring to the hints.

================

In the sentence above, between possible and referring, do I have to put comma there?


thank you.

 

[panjandrum]

You need a comma after possible.
You don't need the comma after below.

"as detailed as possible"?
Try "in as much detail as possible"