i see.
these are some things i'm doing back then when i still use non-interchangeable lens camera.
1. try to seek another angle. below your waist, close, etc.
2. architects had already drawn their perspectives. you can emulate it by finding the spot where it the perspective matches with your photo/viewfinder.
3. since you have a tripod, try making a panoramic view of the structure. (post-processing needed... this was my alternative for not having a wide angle lens)
4. Try to include clouds, trees, etc. but not to much that it might overpower/get the focus out of the structure.
5. Composition is the key. read about rule of thirds, symmetry etc. point and shoot cameras rely heavily on composition to make the images look good.
reading the specs for your camera, it has 143 focus points! (wow!) maybe that can give sharp images on arch'l details.
and oh, i'm an olympus user too... i suggest not to take arch'l photos at night cause our cameras have poor performance in low-light situations.
hth