The morphing carrot cake

We wanted to make an 'awesome carrot cake with cream cheese frosting' that looks like this

This was what we made

Why so yellow?!

Our carrot cake turned into a pineapple kueh!
What went wrong?! We scaled the portion from 24 to 10, and this was what the recipe wrote:

'3/8 (8 ounce) can crushed pineapple with juice '

So we thought it meant 8 ounces of pineapple. In retrospect, we think it means 3/8 of an 8-ounce can of crushed pineapple with juice. That would make 3 ounces. GODDAMMIT!!! PUI!!!