I like the top best. Tacks, when new are usually pretty shiny. If you don't mind some suggestions, the tackboard material looks too small for the tacks. Also, the tacks need a seam on them down the middle. They are made in halves, then joined.
Hey Luis -
Looking pretty good I think. I agree with Bubbaloo that the texture of the cork is a bit small. I think they need to be roughed up some more though. Things that small never really look that good when you get in that tight so they're just a bit too perfect to read as totally real.