I'm messing around with resolutions and I would like someone's opinion on which one looks worse. Each scan has those little lines running across the scan, so I'm not really sure if they are considered artifacts or not (BTW, this is a postcard)
200 resolution
http://oi58.tinypic.com/rmp4cl.jpg
300 resolution
http://oi57.tinypic.com/20sakib.jpg
600 resolution
http://oi58.tinypic.com/fllv0w.jpg