Is this Newman projection energy profile for 2,3-dihydroxypropanal correct? Is this Newman projection energy profile for 2,3-dihydroxypropanal correct?

Also, I was to identify R/S configuration for the initial Newman projection. I am pretty sure it is R, but I need help here as well.
There seems to be only one problem. The 240° conformer* will be lower in energy as compared to the 120° conformer as there will be hydrogen bonding between the two hydroxyl groups
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Rest all looks good.