at time I check out some photographers' websites, to see what kinds of things they do.
and find it is rather amusing, for the services they provide, and the works they showcasing is totally different.
these are the basic principle for portfolio showcasing,
#1, be yourself, show only your own work.
the worst thing you can do to yourself is taking other people works and claim as yours.
you are deceiving yourself and others, you have no integrity and please don't call yourself a photographer.
#2, be selective, show only the best work.
average customers will spend less than 5 sec viewing your portfolio, so if your works don't impress them or get their attention with the first few images, they will just leave your site and move on.
#3, be honest, show the works is within your ability.
are these works you showing is done by you solely? can you do the same thing without any help?
I've seen people showcasing work done from workshops they attended, technically this is not their work, they just push the button.
what if customers asking for the same thing, can the photographer deliver?
#4, be relevant, show only the things you want to do.
customers will look for photos that match their expectation, eg, if they are looking for somebody to take photos of kids birthday party or ROM, they won't be interested to see photos of Thaipusam, sexy XMM in swimsuit, fashion show at the mall, dogs/cats or birds, bicycle at the back alley, garden by the bay... etc