The issue I am seeing here is lack of interesting subject matter. Doesn't mean every image has to be melodramatic or sensationalistic, but more interesting than tree branches or a park scene rendered in the most basic, standard, and obvious way. Sure, you can probably leap to the 4x5, but you are still going to have the challenge of capturing things in interesting ways. The sign definitely has the most potential, it is visually interesting, but it is still a fairly standard approach. Don't get me wrong--straightforward styles can most definitely work, but imo, you have to have stronger subjects than this.