Actually the resin hardened as fast as stated on the bottle - namely in more or less 8 hours. However in my humble opinion the result is really satisfying. Especially because it was my very first workpiece with resin:
As you see it dryed cristal clear and provides nice depth to the river. Overall I didn't discern significant shrinkage. Only the edges became slightly bent up.
Yesterday I fetched my trusted rowing boat and took a couple of shots. Unfortunately as poorly illuminated as the former pictures: