Sadlers' Reserve Pinot Grigio - have I ruined it?

[john_drummer]

In November I put on a Sadlers Reserve 12 bottle kit of Pinot Grigio. Just run it through the filter ready for bottling later in the week, it's very dark & looks, smells and tastes like a Marsala fortified wine.

Have I ruined it? Oxidised? Or did I make it too strong and would diluting it a little help?

[GAZ9053]

The saddlers ones i have done have been dark, dont know if it tasted like another wine i dont know cos i did it for my mum

[Brewhunter]

I once tried to do a batch with grape juice and it 'went over' and ended up tasting like a marsala, I used it to cook with in the end as it was more like sherry