Need advice about my map and my ocean currents! What can I improve and adjust?

[rafa]

As the title says, I need help to continue building my map for my world, I don't have much certainty about whether it's realistic or not, so I come here asking for feedback and advice.

In my first idea, the world would have a giant ice wall in the middle. I was planning to do the planet at 60° axial tilt but dropped the idea because it's difficult to do things work, so I did more earth-like axial tilt.

My main concerns are if the tectonic plates and ocean currents are realistic

My idea is that the middle mountains are an extreme place, that only the most prepared can pass. Thanks in advance!