Please help! I don't understand why my items are rejected

Here Is preview of after effects project file I am trying to upload:

Also it rejected this video I was trying to upload on motion graphics, it was uploaded with alpha channel and rejected

for jackpot,
the design is nice
but the problem with poor ( not much ) effects, camera motions and animation elements to add more realism and fun to track the customers eyes for your work

for the BG
There are lots of backgrounds like yours