Calvin,
Yes, the three shades look very soft and also the pics are a bit greenish to me, but maybe that is in my screen only. Anyways even if you are making a soft edge camo you can make a stronger soft-edge (better defined I mean) that can help to limit every area of colour. Also Xavi advice (the use of brighter shades) can be very helpful to enhance color difference too.
Anyways it is a good attempt for soft camo schemes.
Lu