I started in July 2012, but since march 2013 I had very small amount of sales because I wasnt really active.I guess that sales little drop down in summer time, but otherwise, there is no rules 
How do you mean playback stops?
Like someone said in comment, theme is catchy.But this piano and drum rhythm are sounds very cheap.Also its too much repetitive.And like you said that you have lot worst songs approved, its not for mentioning .I guess that reviewers are little bit stricter than before which is good.
The trumpet sounds very nice.This is great song.You dont have to worry about rejection.
Milos
Hi Check out my portfolio for some guitar and rock songs.
http://audiojungle.net/user/petrenj/portfolioThank you
Milos
And maybe here you can find what you need
http://audiojungle.net/user/fxprosoundThis is interesting
I just sold one of my first songs here on audiojungle, old one
And, hey KabbalisticVillage, congratulations to your 20 sales.I wish you many more!
Cheers!
Milos
Yes.But he needs sound like in the last 6 seconds of video.Not song, as I understand from his post.
Check here in @Urbanzone portfolio.I saw he have a bunch of sounds and effects
http://audiojungle.net/user/urbazon/portfolioCheers
Milos


