There may be a virusscanner issue.
My virusscanner, F-secure flags Flowscape as follows: "A file or program has triggered a DeepGuard heuristic detection because it performs (or contains instructions for) actions that resemble known harmful programs."
It blocks Flowscape from running on my pc. As I am unfamilliar with Pixelforest as a company or developerteam (no offence meant) I shall leave it alone for now and not run the program.
I have contacted F-secure and submitted the Flowscape.exe file for analysing but the Flowscape developer(s) may decide to do so -providing more details- himself.