Im with ND too. This article probably doesnt explain to well but its an example. This is for the written word but the basics apply. If you alter geo and change it slightly then you will probably be ok. Technically though, if we use blueprints and photo refs, as ND said, we are in effect copying, thats a hard one really.

https://science.widener.edu/svb/essay/plagiar.html

I think if you ref the original author/artist and cite your study refs it would be fine.

cheers bullet