Nicely done. Congratulations on your new camera. I too have a Fuji GA camera, though the one I have is the prime lens variety (GA645i). Truly incredible little thing that basically got me started on medium format.
Your pictures look great, however keep in mind you can do even better than this from a scanning point of view. Like you, I started by sending my negs out for scanning to a professional lab in the UK and got only ok results (blown highlights, blocked shadows, relatively strong grain). I thought it was all I could get from the camera/film combo then went ahead and bought an Epson V550 flatbed scanner. After a learning curve the scans are incredible. Give it a try!