Your process on any RC passage is to first do a balanced read of the passage before tackling any questions, taking notes on the major topics of each paragraph with a focus on structure over details. When you hit these "specific" questions you will need to go back to re-read the relevant section of the passage to understand the specific details so you can answer the question.
The first question refers to "Venetian narrative paintings with religious subjects", which should prompt you to go back to the 2nd paragraph. [Note: Some people like to read the answer choices before going back to the text, others like to go straight to the text before reading the questions - you decide what works best for you.] When you re-read that 2nd paragraph and review the answer choices, you realize pretty quickly that you don't have enough information to answer the question yet. You have to keep reading through the end of the passage before you read about the Venetians prizing the drawing of architecture more than drawing human forms - the content of the correct answer E.
Your second question is very similar. If you only read about religous paintings in paragraph 2, you will have a difficult time finding the answer, which is found in the last sentence of the passage.
In general, the GMAT won't make you read so much of the passage to find answers to these specific questions. It can happen, though, so be prepared to read on a bit if you haven't found your answer.
KW