I can only give it a 3 based on my changes, so maybe not a fair score for the white cake. I made it Lemon Cake by using lemon juice in place of vinegar, which was fine. I used a teaspoon+ of lemon extract for the extracts. They say on the bottle to be careful because it's so concentrated. But it was only vaguely lemony. The cake itself was rather heavy or dense. But at least it didn't crumble like some vegan cakes. It was an extremely thick batter. For my second layer (see below), I added a bit of water to the batter. So maybe altering this recipe was not the best way to make a lemon cake. I'll try it again as a white cake sometime!
I want to emphasize that this makes one layer, which I wouldn't actually call a "cake." I didn't notice that (my bad), so once I realized it, I just went ahead and finished the one layer and started over to make another one so I'd have an entire layer cake. Not a huge problem since all the ingredients and cups were still out.