i wasn't too keen on the ship wreck either but it's all down to personal taste. maybe a rock or 2 with abit of java fern planted under them and java moss around them would be a good replacement if you fancy it.
other than that, i like it. what you got in there?
THanks for the comments ppl, I have a nice shoal of 6 green tiger barbs, Im doing a naval architecture degree and all my mates said i had to have a ship wreck in there......so im afraid it has to stay, I may 'cover' it with plants though......