I tend to agree that the design shown is not appealing visually, and doesn't really make much sense in a form-follows-function sense either. There seems to be a great deal of space allocated to human-occupied volumes that would imply a large population, but we know from standard FC's that interior crew count is minimal and the majority of implied volume is inaccessible, unless of course they are planning numerous bars, baristariums, and other rowdy accommodations that squadrons tend to gravitate into.
So many ED ship and megaship designs are based on a long bow to stern axis and a short port to starboard axis; it would be interesting to see the converse -- wider than longer, but not square, square is a boring solution. Take out all the superfluous volumes in the shown midsection, tuck the bridge back between the landing pads, eliminate the towers rising above the stern region, or at least cut the height down by about 80%, for a more sleek, "flying wing" kind of look. Then the "operational" volume would not seem so excessive for the assumed function.