Cocoon Create Airflow Focus

UPDATED TO A BETTER DESIGN:

I am very new to 3D printing, having received one from my fantastic daughters for Christmas (from Aldi) and I have had the usual trials and tribulations getting good prints.
I read that most people add fans and printed fan ducts to cool the nozzle, not wanting to delve into that so soon, I looked at how I could focus the air flow I have from the integrated fan on my printer and have come up with this model, it seems to work well and would love someone to downloa