The boat shot is over exposed and you could lower your exposure a touch in general for daylight shots - I'm judging this on 2 shots so forgive me if these are not typical of your shooting practices.
Avoid 50 ISO. The 50D's base ISO is ~200 (100 is the same as 200). Change your shutter speed to 180° of your frame rate i.e. as close to 1/50 for 25p or 1/48 for 24p etc and use your aperture to control the light or you'll get very choppy footage - if you want a shallow DOF you will definitely need an ND in daylight/sunny conditions.
Always use the raw metering when shooting ML Raw! - you can safely shoot ETTR in daylight for most shots but don't be afraid to increase ISO a bit (max I would ever go to on the 50D is 800) if the image is looking very dark. Also, it's generally preferable to clip some spectral highlight info if it means cleaner shadows and mid tones.
Anyway, the green shadows issue....
MLRawViewer puts the 50D Black level at 2286 - this seems a bit much and is what is causing the green tint. Try changing it with Exiftool to something lower.
-BlackLevel 1750
looks better

I would suggest using raw2cdng with '16bit CDNG maximized' selected.