Wallpaper HELP!

My first wallpaper on Minitokyo... the original is better... but that's the best size I could reduce it to and still have it acceptable...

I NEED ADVICE ON BRUSHES, TEXTURES, ETC. ETC.! I want this one to be my BEST in quality... because this scan was just too damn lovely! The version that would get submitted here would NOT be anywhere close to this... because the resolutions are different... someone should talk to whoever is in charge of the wallpapers and try to add more resolutions... >.<" But seriously people... I. NEED. YOUR. HELP!

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