Thank you folks for encouraging comments.
These two days I have been making small parts with the most concentrated attention.
Yesterday ordered PE handrail was delivered. It looks very sharp. Much better than the handrail I made of thread.
Fortunately tomorrow is National holiday that I can make the model whole day.
dansls1, I think it is about time to restart your model leaving on the shelf. Leaving too long time unattended may cause color deterioration like my model. I do not mind because this is my experiment how to make 1:400 model. Now, I think may be I can make this size ship. From next one I will take care of printing quality and keeping in dust free place.