Transparency
Transparent or translucent gradient IS NOT recommended, it will lose it ''blending'' effect where transparency of 30-40% will start to break and create jaggy edges in your artwork
Image Size
Max print area is 287 x 420 mm OR 11.3 x 16.5 inch. Any design that is out of this area will be cropped/trimmed.
Edge Quality
Check your artwork edge quality and make sure they are sharp enough and does NOT contain ''dirty'' colors resulted from badly removed background process
Copyrights
Make sure you own the copyrights to print