I think it is awesome. Tell us more on the exposure and which filter you used...
Thanks for commenting blue-ultra! The filter was a B+W 77mm ND 1.8-64X with Single Coating (search for it on Amazon or B&H). The manual exposure was f/18 for 4 seconds at 24mm. The viewfinder gets pretty dark with the ND filter on, but I could still see through it to compose.