Here's my recent pass on the original RAW file:
The yellows are a lot better, and the overall contrast is much improved. For post processing I'm currently using Photoshop Elements 13 with Topaz plugins (Denoise, Detail, Clarity, and Adjust depending on the image). I'm not going to get into a play by play on my post processing because I'm still learning, but if you are looking to improve your digital darkroom skills then check out the Topaz YouTube Channel -even if you don't use their plugins there's still a lot of really good advice!
If anyone has some other online post processing references then please pass them my way in the comments.