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Well I am not a flash artist myself though I am a graphic artist in other mediums, so I don't know exactly how much credibility I have as far as technical aspects of a flash but I would like to think I have a decent aesthetic sensibilty. This is by far not the best flash I have seen but its not the worse I have seen either. You said yourself you are still learning . The flash could use maybe some more action or dialogue. Perhaps more detailed graphics. You are probably getting a low score from most not because its a bad flash but because its not really an entertaining flash. Trust me I have seen far far worse. Just keep at it and try to add a little more substance to your flash and I'm sure you will do fine.