How to achieve a style

Since illustrating is not particularly one of my strong points, I will most likely venture down the Photoshop route, piling my images in & going filter-mad. I have applied one of my initial concepts to what I believe to be one of NYC's most famous landmarks, the Statue of Liberty. This concept derives from my experience playing around with Photoshop filters, which albeit are a little cliche, but in my opinion, if applied correctly, can look extremely effective. The process shown here is the use of the "Poster edges" filter, which I have found, can bring out excellent detail in high-res images, while retaining a very illustrative, posterized look. If I am to achieve a look similar to that of comic book artists, this may well be a route I will consider, as this process has hit the nail on the head. If I am to avoid a so called "photoshop bonanza" whilst still using this process, I must ensure my images are laid out effectively in order to create a stunning wall mural.