I hear ya, most of the time I feel I'm just restructuring the same park over and over but always make sure there's something new to skate.. I do have some modern style parks but for the most part the Industrial / grungy style comes more natural for me. Plus, areas like in pic 8 above that really makes no sense actually "makes sense" in an industrial style setting or at least doesn't look like a sore thumb.
Now though, I'm determined to make a nice pretty modern style park