OK i've tested it !
i have played a lot with Zbrush in the past : here is my opinion :
your tool have a eye candy interface, but buttons should have symbols.
-where are the essential simple tool to push pull areas in the model ?
here is a slider to adjust it's size ?
this is the main tool of Zbrush when you scultp like with terrain tools !
-have it a smooth funtcion to resmooth your model once you have
sculpted it a little ?
-where is a symetry button to sculpt in simetry ?
etc ... etc ...
your tool is not good for me at all ; and far far away beyond Zbrush 1 !
Don't take it bad , that's just my opinion after playing with it,aftr 5 min i was very disappoiinted and didn't found expected tools like Zbrush.
when i took Zbrush , in 2 min i was already sculpting like i wanted.
Perhaps within one year you'll have time to enhance and complete the tool
?
eye candy interface don't make the tool
(see 3DSMAX : not eye candy interface and incredible powerfull tool)
Good luck !