Mmmm...... I see what you mean Mr Mitchell ;o)
The main problem, aesthetically, is the "flatness" of the elevation. It's simply 2-dimensional. There's nothing sticking out to give a "shadow line".
If the doors were set back 100mm to give a 100mm reveal on each side, that would look a lot better.
Best of all would be to extend the roof to give an overhang. That would also lower the fascia/gutter line to reduce the height to better proportions. At the same time, it would get rid of that silly pier in the middle, just above the light. I can't think why that was put there :o)
Changing the doors is a must too. The proportions of the panels is very 1930s. Fine in the right place, but archaic here I think.
Painting or staining them something darker would help them to blend in with the brickwork too.
Just a few ideas to be going on with :o)