Love the deep water shot! Very nice colour. What film did you use?
Sorry forgot to mention, shot on the M9, no film... Haven't shot film in a while coz of the trouble it takes for me to get it developed and scanned but hopefully I'll get back to it soon.
As for the colours, I shoot in raw and push the files in lightroom to get the colours I want. But off course I shoot subjects that have colour to begin with and try to get the best angle and exposure to showcase their colours.
If you are interested you can visit my flickr page to see more photos of me chasing colour: Singapore in Colour - a set on Flickr