the sky part in those photos look nice, all the objects what is under that seems blurry to me,
mby overexposured or your tripod moved when you took the picture.
The red / orange part tend to burn out so that makes is even worse, fix the WB and for preventing tripod to move i myself use cheap "unisex"

remote.
maybe longer shutterspeed at more closed F . im sry im too lazy atm to check exif xd so someone will correc me if im wrong ^^
And while you play around wih F and shutterspeed, you can also try "starry" effect without any filters to help you.