i was expressing my opinion on the matter. sure i probably came on a bit strong ill admit that. im sure between the stylized bits and all they would probably be fine too. its not a call i can make definitively and to me its better to err on the side of caution. the point here is that theres a better way to go about it like contacting the companies and seeing what they think. maybe make a mockup that you could share with them and share how you plan to use the assets you create. itd be a shame to work on something for so long then have a judge decide it looks just enough like someone elses ip that you lose all your hard work and have to pay out.
edit: also we are talking about international trademark law right now which im sure has many differences depending on the country. your swiss, the poster is indian, im american. peoples views will be greatly different depending on their location. people in the US can be quite sue happy.