Really does need to be aged a bit, everything is too linear and straight, does not look like a period construction. Still reminds me of the fortifications in the bags of 99c green army men.
The crossbeams on the keep there look as if they were cut with a precision laser saw.
l get that these are designed as boardgame counters rather than gaming scenery, but still, a bit more effort would make them into something with a potential far beyond a boardgame.
**edit**
Menhir have very sensibly (imho) just capped the free stretch goals to what is currently shown. With so long still to go on the campaign there was a real danger of it running away. They are now moving to paid add ons that will hopefully increase the scope of the fortifications while being self funding.
No doubt going to upset a certain segment of KS backers but financially a wise move.