I think it looks nice.. But about the compass.. It looks strange with the drop shadow..
As for the aged look, there are quite a few tutorials that cover that here.
But, as for me I put a parchment texture under it mess with the layer blend modes a little bit and then drop the fill down to about 75 on a couple of layers and maybe some distortion and apply another parchment texture over all of it and put it on Overlay and mess with opacity and fill until it looks good.