I also tried PI briefly and quickly dropped it to return to Photoshop. Some people swear by PI but for others it is confusing and not at all easy to use, especially if you have a lengthy Photoshop background imho. The PI guys will be recruiting you shortly.
As to your image, as processed by you, i actually prefer the PI colours but that can probably be fixed in Photoshop version with saturation and balance. It is hard to know how good your Photoshop skills are from that image. Which version of Photoshop are you using?