Mystery creature

Bright colors to be discovered...
Only transparent it can be...
What is this that has been uncovered?
A pot of gold it may have seem...
I hear this laughter behind this tree...
To my knowledge can it be?
Pointed shoes I think I see...
As it stands there with a grin...
In tathered clothing that is so green...
With pointed ears and a pointed hat...
A belly that is so fat...
What is this creature that I see?
A leprechaun I think it be...
Then with a flash...
Out of sight it moved so fast...