Time is not on your side. A first impression is everything. Consistency is not important as much for its own sake as it is to show both direction, conceptual vision, and signature style. It also shows maturity. It doesn't matter how gifted you are if you are all over the place.
Presentation is important because it keeps the work in the front, and makes it harder to dismiss.
Like it or not, everyone respects good presentation. Of course, the artist gets to apply their imagination to determine just what good presentation is for what they do. Good luck and stay positive.