so as you can see in the bottom the black part goes under the ramp. So anyone knows how to fix it or how to line it up with where the ramp is going. Same thing happens with support beams
That doesn't seem too out of place, I'd just leave it. But if you want to you can add a dirt or stain overlay to the bottom of the wall and line it up with the edge.
As for aligning support beams, check out this video:
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