That is some excellent work! Having never built a paper model, it boggles my mind how someone can work with something that small and have it come out looking so beautiful.It must take a very steady hand, and a lot of patience!
I've been working on that 1/72 shuttle for about a month now and am just about ready to get the final white coat on then start getting the black tile and gray RCC areas painted.The cockpit lid is taped on but will be loose so I can show off the cockpit when the bird is done. Then I'm wanting to surround it with other US (and world) 1/72 manned spacecraft that have already flown.
I'm in no rush. The kit will sit in the box until I can get some information/tips from modelers with experience with this particular kit. I just want to know the pluses and minuses in working with this model. My 1/144 stack came out OK, but it doesn't have near the detail this model can display.