Stepped footing down steep slope

Hi guys, Am playing with the idea of retaining a bank behind the garage and have drawn up a rough plan on what I want to do attached below. What is the best way to link the two footings up on the ends of the retaining wall (approx 900mm high)??. When I draw in the steps in the footings to get up to the garage footing it all gets a bit congested as the slope is quite steep and the distance isn't that far away. I have seen an excavation at a house up the road where the footing was sloped and...

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