I tried to do both of these sketches as quickly as possible as I am not very good at that. I also tried out alcohol markers for the first time. There are lots of imperfections, I need practise using different materials and working quickly..
Sketch Up isn't friendly to me yet and I'm still getting used to the tools and possibilities. This is a simple modelling task that took longer than the suggested 20 minutes. I need to practice and will use this process to develop my visualisations.