I agree there. Members spend four months planning, preparing, and building the models for their GB entries, but, to judge by some of the 'Finished' thread photos, they only spend four seconds planning, preparing and taking the photos!
After the build itself, the final six photos are the most important part of any entry - it is these that are used for the final judging. The extra four are your chance to 'show off' by emphasising parts you really like, or by creating a realistic scene, for example.
If the final six photos are under exposed, un-sharp, or the model itself too small in the frame, or the image cluttered by pretty wallpaper, background mess or other distractions, then the preceeding four months have been virtually wasted.
If the judges can't see the quality of the model being judged, then this can, and will affect the judging.
It only takes a few minutes to set-up for the photos, and this can be done quite simply, on a table top, utilising a desk lamp, preferably a pare of desk lamps, with a suitable, plain, neutral-coloured backdrop, and a quick check on the 'White Balance' of the camera.
Available daylight can not be controlled or manipulated - artificial light can and, with modern, digital cameras, it's a relatively simple task to achieve good, clear, sharp, usable photos.
And if you don't believe me, then have a look at the Tornado pic below. This was shot against a backdrop of decorator's lining paper, draped over my computer monitor, lit by two, 40 Watt bulbs, one each in the desk lamps on my work bench, and using a simple 'bridge camera', hand held. And i didn't even get out of my seat to do it - so no special tricks, equipment or effort.