Good description is a learned skill, one of the prime reasons why you cannot succeed unless you read a lot and write a lot. It’s not just a question of how-to, you see; it’s also a question of how much to. Reading will help you answer how much, and only reams of writing will help you with the how. You can learn only by doing.
Let's get one thing clear right now, shall we? There is no Idea Dump, no Story Central, no Island of the Buried Bestsellers; good story ideas seem to come quite literally from nowhere, sailing at you right out of the empty sky: two previously unrelated ideas come together and make something new under the sun. Your job isn't to find these ideas but to recognize them when they show up.
If you write books, you go on one page at a time. We turn from all we know and all we fear. We study catalogues, watch football games, choose Sprint over AT&T. We count the birds in the sky and will not turn from the window when we hear the footsteps behind as something comes up the hall; we say yes, I agree that clouds often look like other things - fish and unicorns and men on horseback - but they are really only clouds. Even when the lightning flashes inside them we say they are only clouds and turn our attention to the next meal, the next pain, the next breath, the next page. This is how we go on.