Crappies everywhere have a ritual of moving both higher in the water column AND closer to shore in the evenings. During the day they often hang in deeper water, and are more difficult to target with a floating fly line. But in the evenings they can often be caught fairly easily if you find the right areas.
Also be aware that although crappies often like to hang near some sort of structure (preferably woody structure, like a fallen tree or flooded brushpile), they often also school suspended in open water. Fishing can be quite good if you can keep near a school of crappies!
Another thing to keep in mind is that crappies prefer to feed UP. Depending on the water clarity, they will move up a fair distance to take a fly. I've seen this behavior even in cold water, when ice-fishing. I've seen crappies move up from 5' to even 10' below the fly to chase it upwards before hitting it. And that was in water of questionable clarity!
In the evenings, crappies can sometimes be caught on topwater flies, but I don't believe this is the BEST option.
A very similar pattern is the Springbrook Wunder. These are usually tied in more natural colors, starting with grizzly chickabou tail, and a silver or gold sparkle chenille body:
Here's the actual one that caught a lot of the nice crappies in the previous blog:
The next pattern is a Kraft Fur Clouser...which is tied like a Clouser Deep Minnow. Because I tie these in sizes 8 and 10...and sometimes even 12...I find Kraft Fur works a lot better than bucktail on patterns this small. 1"-2" sizes work very well. I've caught crappies on all the colors below. Chartreuse and/or white is always a safe way to go, size seems most important. Choose the barbell, hourglass, or beadchain eye size/weight to suit the hook size and the sink rate you desire. Also, you can somewhat affect sink rate by how thick you tie on the Kraft Fur. Too much can hamper hooksets, though.
One last pattern to consider, especially in dingy water is a minnow pattern tied with silver or opalescent mylar tubing, and your choice of tail material. You can use lead tape or lead-substitute wire under the mylar tubing to achieve the sink rate you desire.