Hi Paul,
Good job so far!
I would wait until the account has a profit of 3% before increasing risk to 2%. The reason for this is if your account has a drawdown of 2% you would still have a 1% profit.
Changing out GBPAUD for AUDUSD may be a good idea as it has larger profit last week. However, that does not mean AUDUSD will be more profitable than GBPAUD next week. It is your choice. Oh, the choices we traders have to make! :o(
Alan,