It is very good.
Myself personally, i find the greatest challenge is my dialogue between characters, it takes me a while to structure a sentence so that is realistically viable.
Sounds good, shifting tenses from present to past are tricky to instigate, but fun to read.
Yah, Gene Wolfe, is stupidly heavy going, but once you get used to his almost poetic style its a good read, odd fantasy with a dark twist. but a warning, heavy going like nothign else at the bgeinning.
Its like reading wordsworth lol.
Tim