The most creative people I know are also the most optimistic people I know. It takes optimism to embrace a really new project -- whether that's a new painting or a new building or a new process or a new product. The need for optimism probably stems from the fact that you are exposing yourself to criticism, since we all regard the creation as a manifestation of the creator.
I think that is why so many creative people have a tendency to overstuff their creations: they want everyone to see the full breadth and depth of their genius; they don't want to be judged on a stripped-down version of their vision. Even when the first few elements of the project represent 70-80% of the potential value, we often insist that "75% is a C."
Life is full of the unforeseen, and there's plenty of the unforeseeable, too. Whether you can see the challenges or not, they are still there -- licking their chops to get a shot at your project. And, like a pack of coyotes, they grow exponentially more devastating as their numbers grow. One coyote or problem is basically a lonely puppy. Ten coyotes or problems is a buffet, and you are the entree.
The reality of creativity is that it faces 2 exponential functions, both of which are related to complexity. Marginal utility is declining with complexity, while marginal risk is increasing. Multiplying these two curves yields the green line in the chart below: expected value.
The creative brain does not want to see the reality of the green line. We must discipline ourselves to see it; and, we must discipline ourselves to act accordingly. So, here is a good exercise. Ask yourself the following question:
This is probably the only version of your project that is worth your time. And, before you start calling this a cop-out strategy, remember: Life is FAR more complicated than you think.