Diagonal lines can become visually distracting to readers. Try to stick to horizontal lines with 90 degree bends.  In small examples this may not appear to make a big difference, but as your Process Map grows the effect will be significant.  Combine right angles with consistent grid spacing for great results.

The default diagram background grid is made up of light colored lines placed 16 pixels apart and darker lines spaced 64 pixels apart. Almost all Elements in the Modeler will highlight with a 64×64px box. That makes it pretty darned easy to space Elements consistently the same horizontal and vertical distances apart. [...]

All Elements – Use consistent capitalization in Element names.  We recommend using title case.  This basically means capitalizing the first and last word as well as all other important words in the name.
All Elements – Avoid qualifiers, descriptions, and metrics in Element names. These are all vital parts of a process but nine times out [...]