This is a simple theme combination of Mac-OS-X DP (by an unknown creator) and Classic Platinum Streamlined (by libertyernie) to make a GTK2 theme that works well with the XFCE4 environment. More info in the readme file attached with the download.
The window manager theme is PlatiPlus created by libertyernie. The wallpaper was found the unixporn subreddit, here you go https://i.imgur.com/9HkUlaH.png.