Candle Lane, the home of the Cult of Light, was mildly spectacular. Had I been there on holiday, I might have taken a moment to appreciate that the entirety of the avenue was illuminated in gold flame without the exception of a single crevice or corner, but there are reputations to be upheld when on duty. Besides, there had been a murder.
Tenses can make a difference to your story, emphasising different elements and changing the atmosphere. Here is a basic introduction to the three tenses and their strengths and weaknesses.
One of the questions I often hear writers asking is what genre their book is. Here's a quickfire introduction to genres within fiction, what genre is, and why it matters.