super mario band stage

[FLAMESTERART]

i took a couple of days a while back to make a band stage for super mario, after seeing a music video using mario sprites. they didnt have much of a stage, so i took it upon myself to construct one, using sprites from this website. ( THANK YOU ALL OF THOSE WHO POSTED THE SPRITES I USED> )
i will post it as soon as i transfer it to my laptop, this is my first attempt at any kind of sprite, so please rate it fairly. thank you.

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here is the image, it is still in the rough, so please give me suggestions on how i can improve it.