You original looks ok, if a bit flat. Agree with Manel's addition of some contrast in that regard, though it may be a bit much for my taste.
Back on track - can you link your smugmug image? Depending on the color space you saved in and some other factors, it may look different in their rendering, regardless of the printing.
I use smugmug and have been very happy with their printing vendors, which I believe have been consolidated to Bay Photo in San Francisco. If you haven't read it, here is a link to the FAQ re: color correction in their printing.
SmugMug Help: Should I enable color correction?
If you don't have a login for Dgrin.com yet, suggest you look into it. In addition to smugmug support, there is an active community of amateur and pro photographers from all brands that are very helpful.