#2 Won, But Can Never Be

NOPE! This will not be the design printed on my UPrinting cards afterall. =(
You remember #2 sample from my poll to select your favorite of my card designs? Number 2 ended up being the favorite by far, so that is the one I sent in to UPrinting. Well, they emailed the proof, and said that the picture was blurry. They wrote I had to either fix it, send in an alternate, or approve it as is.
I wasn't about to take the chance with 250 cards coming back to me blurry and non-usable, so I tried to remedy the problem. I sent it in again, to no avail. It came back again saying the same thing. The prepress team gave me a call and discussed how I could fix this. It seems that the background I had found online to use on my card was the biggest problem. The resolution just wasn't good enough. They told me that when I create a design to send in to them, to double check it by zooming in on it 500X. Yup, a 500X zoom. They were very helpful.
So I went back to my other samples to see if they would work. Number 7 was the runner up, so I zoomed in 500X on it, and no way. Super blurry!
I went back online trying to find a nice "wallpaper" looking background and zoomed in, only to find that this was really not working out. I then decided to get my own purple scrapbook papers and take a picture of them. I uploaded, zoomed....and nope! Still not good enough. I was really tired of stressing on this, so I finally said screw it.....no background. I designed a card with just plain color background. I zoomed...looks good. Sent it in.....came back a-ok. So now I'm just crossing my fingers that I like them when they come in.
I'm not posting the "plain" design on here....you'll just have to wait and see it when I get them in the mail!
Has anyone else used UPrinting for anything? What kind of design did you use?