Mike is head and shoulders above where I am. His are just packed a lot tighter and his proportions look better as well as his trimming is crisp.
It does however just take a LOT of practice and wasted deer hair. I know doing some divers for the smallmouth swap a while back made me a lot better, and faster with packing hair too. For the fly above I spun a layer of gray to get a base and then stacked a layer on the bottom and then stacked my colors on the top of the hook. I have always had better luck getting the bottom color to come higher on the body of the fly that way but that's just me.
Also, steaming the fly after the initial trim can help get everything freshened up and you can hit it with a razor one more time and get some really neat nice lines.