They're nice shots; particularly for a first time out sort of thing. Next time, give yourself some time out to play with your settings; bring a tripod (or set a beanbag on your car or something) and use that stable platform to bring your ISO down, shutter down and/or stop your aperture down. Vary the combos and see what you like. Bringing your ISO down will give you less color noise in your night sky and look a little "cleaner"; bringing your shutter speed down may/may not give you some nice effects on the lighthouse as the lantern swings, and if you completely stop down your aperture, you should be able to get a bit of a star effect off the lantern. That last won't be as crisp or nice as the effect from a 16-35 f/4, as IIRC, the 105 only has 8 blades to 9 in the other; but, it's a fun thing to play around with.
And remember; since all 3 play together, once you've determined your "proper" exposure, you can mix 'n match all 3 toward the various effects just by doing some simple math 