I have uploaded 3 images below. The one of the bus, and the sunset scene with the blue tinge were taken with a Pentax 645 medium format camera using Fuji Portra ISO 400. The 1st sunset picture was taken on my D200 which got the exposure right.
The fastest shutter on the Pentax is 1/1000. I don't recall the aperture but I believe it was around f/4. I was using a 75mm f/2.8 lens on the Pentax. The D200 was set at f/5 with a speed of 1/2500.
Given that it's print film, it's either the printing process or the scanning process. Since they look like scanned prints, I'm guessing your photo processing company isn't terribly good. Print film has a very large exposure latitude, enabling good looking prints even if the exposure is wrong. Color corrections should also be handled during the printing process via filtration settings. Neither appears to have been set correctly. This is one of the big problems with commercially developed print film - unless the processor cares about what they're doing, there's a high likelihood of poorly exposed, poorly focused, odd-colored prints. It's one of the main reasons I scan my own film images for printing.
If you used color negative film - getting accurate color from a negative scan is a challange. Color negative film has an orange color to the film base which must be compensated for to get the colors right. Some of the scanner software has a film library so you tell it the film you used and it will automatically correct for it.
I did re-scan using Arc Soft, and I downloaded a trial version of VueScan and one of them did list various brands and types of film. Here are some samples of the re-scanned negatives. The sunset scenes are before and after some post-processing and were done with VueScan. (The bluish one is the "before" picture)