It's good to start basic, the trick is to minimise the damage to your pocket first, explore with your basic set:
Explore, listen, absorb, equip, then execute.
Usually, when people start shooting, they don't have a strong idea of what genre they'd eventually stick to in the later stages of their journey in photography.
Thus, it's advisable to have a very basic set that fulfills general shooting requirements. then as tastes and techniques develop, then maybe you'd be ready to go into those areas, and procure more specialized equipment and lenses.
The body + 2 lens combo is a good buy to start out. Getting more and better equipment helps if you have stronger requirements later in the future - while there is still some use for your starter set - which has the potential to serve as a back up.
Suggest that you stick to this combo first, then as you go along, for any lenses in future, it's good to look in the Buy/Sell department of this website - this allows you to fiddle with a few lenses but the damage to your pocket won't be as great as buying a brand new one - unless you've got a strong sense of direction on what you want to shoot and do, or making long term investments in equipment.
Good lenses and equipment help by turning invisible and getting out of the way of the photographer when he's making photos, but they alone wouldn't guarantee good photography.
Cheers,
