To recognize renaissance in general you have to know its features. Firstly, artists started to admire human body for its anatomy and proportion and therefore, focused on naturalism. They also didn't concentrate on frontality but tried to put people in complex poses from many points of view which helped in expressing emotions. It was the first time when background of a painting was so important and the perspective and atmosphere were included (the way of blurring shapes and colours to make it less intense so that it looks like it's far away.). The revival of plants starts in spring. God is meant to have the eternal life. In the Bible a dove is a symbol of the Holy Spirit. https://www.youtube.com/watch?v=6YiL9MNyGKE