Here are some examples of NPlot in action. C# code to create all of these example plots is included with the distribution.

Click on each image for a full size view.

Example candelplot, filled region, line plot, datetime axes.
Example line plot with custom colours.
Example using multiple y axes, dashed line plot, histogram plot, custom ticks

a live web example can be viewed here

If you have used nplot to generate a nice looking plot, get them ready - the examples page will soon allow user uploads!