They beat Germany 10-9 in Manchester on Sunday and are now focusing on progressing to their first European finals since 1997.
"Germany are in the top seven in Europe and we beat them twice this weekend," said head coach Sylvezter Fekete.
"It's looking good for next week as well as [the Olympics] next year."
However, Fekete insists the team are making excellent progress.
"We've done well against two World Championship finallists and we've started to play the kind of water polo we want to be playing."
The British women have experienced a productive 12 months.
In October of last year they joined the national league of Hungary in a bid to increase their exposure to elite opponents in the run-up to London 2012.
The move appears to have worked as Great Britain opened their European Championship qualification campaign with a convincing 26-1 victory over Israel in January and an impressive 11-7 defeat of Ukraine away from home in March.
That month they also learnt that both the men's and women's water polo teams would receive guaranteed host-nation berths at the London Olympics.
Boosted by that news they went on to claim an historic 10-9 victory over this year's world champions Greece in a tense Fina World League match in Barcelona in May.
"Thinking back two years ago when we first joined, we have come so far," said GB World Class Performance Manager Joanna Wray.
"We have beaten some strong teams this year and last and I'm confident we will continue to get stronger with every match."
Great Britain will secure their place at next year's European Championships by defeating Ukraine this Saturday, which starts at 1800 BST at Manchester Aquatics Centre.