Good examples:
Tor Frick
Tor Frick has a very good example of a simple minimalist layout for a portfolio where the art speaks for itself and the background doesn't distract from it. the artwork is all presented in one big image which links to other collection so the aforementioned piece with minimal load times. I will more than likely follow this template for my own portfolio.
Daryl Mandryk
Daryl Mandryk is a concept artist whose portfolio is a tad more fancy than Frick's, he has selections of galleries based on year and projects with a side bar of small thumbnails which then load up quickly into a large centralised image.
The grey works just like Tor Frick's allowing full focus on the artwork, however I feel that the grey is less overpowering and duller maximising artworks colours. saying this any black and white works do work better in grey.
One thing Tor Frick has done that Daryl has not is create a website with a unique web address thus making it easier to find, this is something I will have to look into when creating my own website.
Bad Examples:
Shaun Williams
Shaun Williams website is a bad example, as his art isn't the best and the website doesn't showcase it very well either, the images aren't very big and the header seems to portray more of a media or film-maker aesthetic rather than games artist of any avenue. Furthermore the random green highlight is very distracting and adds to the already cluttered top.
Alexandre LUTZ
Lutz' website is an example of poor planning where the opening page does not showcase any art, on moving to the next page the art is mixture of good and bad but more notably there are spelling errors riddled throughout the website from small and lazy grammatical errors to misspelling names of projects he has worked on. some of his screen caps are also do not showcase his work very well due to poor framing.
from these I have come to realise that a simple minimalist website with minimal text (with the exception of the about page) maybe a slight flare of colour in the header to break up the monotone minimalism without overpowering the art, to have a unique address and to have large high quality images. additionally I will create a small favicon (the small image by a tab to denote what website it is like the YouTube play symbol) to make my website easier to find among other tabs on screen.
References:
http://www.torfrick.com/
http://www.members.shaw.ca/dmandryk/
http://www.shaunsgallery.co.uk/Envselect.html
http://www.alexandrelutz.com/#!stargate-sg1-unleashed/c149t