#1
If one chemical is added to a dark red chemical, and the solution is darker red, did the equilibrium shift more towards the products or the reactants? If a chemical is added to the same red chemical and the solution is yellowish, where did the equilibrium shift?
#2
If the chemical product is the yellowish color, ex.1 shifts towards reactants and ex.2 shifts towards product.
#4
^your wording is wrong, but your answer is correct.