YOU SAID:

I went left, then right, than north than downwards.

INTO JAPANESE

私は下向きよりも北に向かって左に行きました。

BACK INTO ENGLISH

I went left towards north rather than downwards.

INTO JAPANESE

私は下向きではなく北に向かって左に行った。

BACK INTO ENGLISH

I went left towards the north instead of downwards.

INTO JAPANESE

私は下向きではなく北に向かって左に行った。

BACK INTO ENGLISH

I went left towards the north instead of downwards.