Dont show unfinished stuff unless its finished, so to speak, show in progress stuff from wires thru to textures to final render.

If you have followed tutes dont include those as it will show you are relying on someone to help you along and could prove to be a hinderance at a job. Fair enough you cant know everything but you'd be expected to know a fair bit without relying on a source. Though we all need help at times...you know what I mean though

Try and be specific of what type of work it is you want to do then show those skills in your portfolio.

Jay