Stargazing: Genesis - Walkthrough

Hard puzzles here. Be prepared.
Colours puzzle 1:37
Books puzzle 10:03
Pipes puzzle 13:39
Safe & telescope puzzle 17:57
Flower puzzle 23:25
White lights puzzle 29:56
Nonogram puzzle 33:56
Stars puzzle 49:03
Stars puzzle: Each position of the stars watched with the telescope (upper left, upper right, lower left, lower right) refers to the different symbols (at 48:31) as combination to open the safe.