Usually I am very pleased to trace tiles and draw them in my sketch journal. It keeps them altogether. That is unless you make a mistake - a large one - on the bottom half of the page and there is no way to get it out of the journal unless you throw away the top half. Bother.
Since white out wasn't an option, I grabbed a black pen and "blacked out" the first bottle and the nasty mistake. From there everything seemed to work nicely and I actually think it came out okay. But just know lurking under that black bottle is a rather poor tangle that is all wrong!