Check out these macro lens quick tips from Canon. It's close-up photography made easy! Takeaway: I find some tips here useful such as the use of tripods to make the shot steady and also to shoot at bright lighting.
Starburst effects can add an interesting element to a photograph. In a dark scene, it can add a dreamy, peaceful twinkle to the lights. In a daytime scene, a starburst sun can add drama and interest (Diy Photo Lighting)