The easiest way to create contrast is by creating changes in the tones or colors in our images. Higher contrast will give a different feel than lower contrast (think of Low-Key week in March). By using the most contrasting, or complementary colors (like red and green which are opposite each other on the color wheel) you'll capture a beautifully contrasted photo. On the other hand, if you want to use analogous colors (colors that are next to each other on the color wheel), you can create a lower contrasted image. By using complementary or analogous colors, you’ll create juxtaposition - which is placing two things together to show contrast or similarities. Another idea is using tonal contrast which is especially seen in B&W photos, or warm or cold colors. Contrast can be created by using different shade/tint, using different textures, higher depth of field to blur your background, old/new, big/small, natural/artificial. When you are taking photos this week, think about the mood you'd like to convey and play with diverse types of contrast that will make that mood stand out.