Not up to Envato quality standards?
Its crisp and clean zoomed at 100%, i dont get it
I would try making the main large title a brighter, more saturated colour - it looks a bit heavy as it is now. Plus the spacing and such on the lower text looks a bit inartful in places.
I agree with ToivoMedia.
Maybe chose another typeface, more fresh.
There is too little space between the date and the happy hour
Yep, the hierarchy of the text is probably the main thing that let you down.
Text needs to flow in an oval shape and be broken up by graphic props, if it keeps going in and out.
Not sure if they soft reject flyer here, anymore, but that is one of the reasons.