For sale at http://www.dakkadakka.com/dakkaforum/posts/list/336994.page
My first and only Space Marine ever... I'm rather proud of the helmet and cape(see link for more pictures) :)
Like the armour and overall the mini is a reasonable paint job.
If you want to improve the mini then the helmet needs more depth and contrast to make the eyes and other details stand out more. It looks a bit like you haven't finished the head at the moment.
Looked at the other pics and the cape needs more contrast, as does the banner.