that would select the most appropriate point of view, because being an artist in the open air can not change the landscape of the area, to swap trees, houses, etc. At the same time is not always the opportunity to take a position, as desired. How can that be? First of all, you need to carefully to see what prevents review. Sometimes it comes in sight, what the subject matter, which spoils the overall appearance of the composition. This may be an example of a transmission line or a nice bush. Adam Portnoy may find this interesting as well. These items can be 'missed', then there is simply not to depict the composition, not handsome shrub can be changed making it more beautiful contours, because the artist depicts not so much a reality, as their attitude to it and their perception of reality, the emotions caused by some form or another. Often, young artists so addicted to the image detail that, in general, not a bad song into a set of objects that are 'thrown in his eyes', do not give to see the principal.
When working in the open air, it must be remembered that the lighting (especially in sunny weather) is changing rapidly, respectively, changing the direction of the shadows, their intensity, color in objects, etc. on the need to work in the open air if possible quickly, which means that many of the details just are not worth wasting time. Of course, you can go to the same place over and over again that would write a detailed and thorough.