Triskellion,
You may love your sweater that is on the way! Wait to see when it arrives before you decide. I did not mean to imply that it wouldn't work well for you! Remember we all live in different conditions and have varied needs and wants.

I have never looked at the details of the sweater you ordered, and it seems to be made of 100% organic wool but maybe not merino. That's certainly a nice thing- and you wouldn't be wearing it over bare skin anyway. It might well be a totally fantastic sweater to wear over stuff when you are cold.

I mentioned what I like to do with layering merino items. I think of my full zip shak as a sort of light cartigan, so it looks fine a bit loose when I wear it in Large over my other shak. If I could have only one shak it would be the full zip like yours, and I'd have it in the smaller size Medium that fits me not loosely, just like you have done. I do find that 2 shaks layered are pretty darned warm.

If your organic sweater arrives and you don't like it for some reason, perhaps you could try the Ibex Cara or Strato sweaters in medium- they are similar in price too. They are all nice sweaters, but all 3 are certainly quite different from each other.