It indeed does help.
Maybe you can get a volunteer artist to make a mockup (is this how it's
called?) of a leveldesign that he would create if the goal is reached.
Just one picture, really stunning;
even better would be a whole level or maybe just a part of the level with
this new design that shows at the same time a few interesting puzzles you
could build thanks to the new features of retux (the ones you were talking
about).
It's alot about visual stuffs, trust me.
Most people just quickly browse through those campaigns and decide after a
short moment if they're interested or not.
Maybe they look at the supertux picture and think "already know that" or "hmm
looks ok". Then you lose them.
What you want them to think is "Wow, the graphics look really nice and the
gameplay is kind of fresh and smart".
Besides, how do you currently promote your campaign? Just the trisquel forum?
Those are just a few ideas, hope they help maybe.
