As for primary reaserch, this is basically the reference i collected, thinking i would need it during the final idea refinement stage. I actually only used a small amount due to my final idea (as most of mine are pose references, not building references. 

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Many of these were actually taken a while before. Since i could'nt go out much, only around half are photos taken specifically for the project. The others are photos taken before during vacations. I chose the ones that fit my idea/had elements i wanted to include. The old photos were from challenge week when I went to China, and from a trip i had with my family to japan many years ago.