The ramp is strong enough, even if you put metal figs on it - tested

But you have right - it would look better, I need to think about this. The idea was for the ramp to be fold-able for easier storage.
I agree that it looks similar, but flooring is made from the same HIPS plate than the rest

I simply scratched this pattern with the help of metal ruler and file. After painting and washing it looks quite convincing.