Hegar

Labour is a centrist party that historically emerged from the union movement. They occupy a center-right to center-left position.

The Liberal/National Coalition is right to far right, though they used to have a center right wing (“wets”). The liberal party mostly represent the interests of the rich and business - liberal as in laissez faire, not liberal in the US sense. The nationals have historically represented the interests of farmers and rural communities.

Independents are representatives without a party allegiance. When your electoral system is designed to reflect the will of the people - ie it’s not first past the post - you can have independents or minor parties.