Dear brethren, I looked for this but couldn't find something clear, and I really hope my question does not upset anyone.
As you are aware RC's have many devotions to the Theotokos under different names, something I believe is shared by the Orthodox Churches. To be concrete, those devotions of the West, pre-schism, could be considered as valid by the Orthodox Church? In my concrete case, as a Spaniard I love the Theotokos and I have a special love for the Virgin of Covadonga, who is the Patron Virgin of Asturies where I'm from. The devotion goes to around the 3rd or 4th Century and became stronger around 8th Century with the Reconquista.
I know that under any advocation, we are venerating the Theotokos, and as long as we do not fall into the errors that unfortunately the RC Church has fallen into, I believe it should not be a problem, however I want to share this question with the forum. Further, I suppose the opinions might change with other advocations such as Fatima, the Miraculous Medal and Guadalupe.
God bless you all