I like your work , But maybe you can take more pictures , To show us all the mod's and details
Use the "Micro"
botton on your camera and turn off the flash . I am sure we will be able to see much more if you do that ..
I like the painting , You can feel the shadowing .. But the yellow
you used is quite drastic , Is it yellow or apple green
in the first place ? .. Anyway the yellow/greenish color somewhat created a sharp contrast .
Of course colors is more of a personal taste , So never mind me
BTW: Are you thinking about doing some weathering ?
Best of Luck ~ Thanks