I think my only (simple) point was that exploration had to come before colonialism, which seems to be true in the case of Spain and the rest of europe. Its just that with england, france and holland they did not make the leap to colonialism as quick as spain.
To an extent this might be because the Spanish kept those countries bogged down in europe, once Spain lost its prime position in europe (after the spanish armada?) england and france began their colonies too.