From the US: Sounds perfect!

yes your pronunciation is correct for plural "women" ........for singular "woman" you would pronounce the "o" as a "long" o

Yes correct

Your pronunciation of 'women' is perfect. I'm from the US, but any English native would understand you perfectly. Well done!

Yes, this is the traditional British English pronunciation. . Lately, I hear a lot, a pronunciation sounding more like the vowel in woman, but with an ending of ..men. This was traditionally incorrect. I do not know whether this is a common mistake, or an accepted new flavour.