Tutor's feedback and review:

The tutors were completely right that the 4 sketches didnt really go together as a set. The reason was simply that they were not made as a set at the first time ( it was my fault to not read the assignment hand-out carefully ). 


I am thinking about not using those sketches as the final submission anymore. I will refine some of my early development in processing instead as their relationship to each other are quite strong.  

Well, better off to ask the tutors for opinions.