@sorinc03 don't worry, they will get back to you with a result. It may take time but I'm sure they havn't forgotten, and I have never heard of someone not being informed of failing (nor have I heard of anyone failing before stage 1).
@therealist IIRC I managed all of the diagrams and left 3 or 4 cubes, but that's not saying it's what is needed to pass. Just do your very best and hope for the best, that's all you can do really...