Looks pretty good. A few aditions will make it great. First, there is a frame on the canopy around the door opening about 1/16 of an inch wide that should be same color as rest of fusalage. Also, there is an oval frame on the front of the canopy as well, about 1/16 wide also fusalage color. Frames on the patient protectors should also be painted fusalage color. Lastly, landing light under cockpit should be fusalage color too.
You can see the window frame and oval here:
Here is a view of the patient cover:
Here is a website with some good shots of Bell 47 medivacs in action: http://www.bell47helicopterassociation.org/BELL%2047%20PIC%20GALLERY%201.htm
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