Here are the answers! How many did you get right?
Challenge 1 Answer: Civilised potion shop.
Challenge 2 Answer: Shrub with a spiral leaf, viewed from the front.
Challenge 3 Answer: Table with table runner, viewed from below.
Challenge 4 Answer: Corn.
Challenge 5 Answer: Rock with stone carvings on it. Specifically, the one with 3 triangular shapes and a roof shape at the bottom.
Challenge 6 Answer: Snowtown modular set.