yes i saw that thread. and i develop with a6 and free lite c

at first, the rotating of the tiles sometimes felt really strange - like i wasn't sure if it rotated really as I expected it to and the rotation itself feels a bit weird. But other than that, really great and catchy !
something strange occurred when i 'finished' a level -> it didn't advance to the next level or show some screen like "game finished" or exit...i also was still able to change the tiles after i had rotated them correctly...

Frankly I was still too lazy to add an "game finished" or exit.
I was eager to get feedback if the gameplay is addictive.
I´ve to addict myself to the game, just to stay motivated.

I´ll upload an A7.85 version for testing!
Edit:

http://www.vulkanware.de/stuff/HexAmaze0.2_785.zip

Nothing changed, just compiled with A7.85.

What do you think about the style?
How should I adapt the style so that it fits the expectations
of the target group?

i think you have to change something about the rotation of the tiles !
i could think of two ways right now which would be interesting :
way1: rotate it like you do now, but add some kind of 'speed lines' which indicate in which direction you rotated the tile

way2 (way cooler imho ^^): when you click the tile to rotate, it rises a bit above the level of the other tiles -> it hovers above the ground, then it rotates smoothly - not chopped and after that it sinks back to the level of the other tiles ! thus as if you take the tile rotate it and put it back in..

about the style, that will most likely depend on the setting/theme you put the game in, as most casual games like this one, have some 'theme' which in fact has nothing to do with the game dynamics and thus is completely interchangeable, like :

http://www.fileguru.com/images/b/sea_journey_games_puzzle-58010.jpeg (pirates/seafight ?!)
http://robingames.com/blog/wp-content/uploads/2010/01/Luxor_5.jpg (Egyptian ?!)
http://www.wired.com/images_blogs/photos/uncategorized/2008/07/30/jewelquest.jpg (some ancient south/middle american civilization !?)
http://www.blogcdn.com/www.joystiq.com/media/2008/02/octomain_wii.jpg (anime !?)

but which of the many possible themes would suit this game best - no clue oO

You already painted grass and ways on the tiles, and its about 'freeing' a way, so look here as a reference:
http://www.youtube.com/watch?v=QeLmnyKVQpM

about the rotation animation, yes, that's what I meant
little hard to explain, but it was chopped at a 60 degrees turn.
I saw that stromausfall already said it too.

just a thought.

Thanks, I´ve added the rotation.