The images you saw have been considered all but heretical in the Eastern Churches. To visualize the ineffable Father and Holy Spirit is absurd. Here is the proper form of the icon of the Holy Trinity. It is called "The Hospitality of Abraham" since the Fathers believed that the visitation to Sarah and Abraham by three strangers was a "type" of the Trinity.
Father Raniero Cantalamessa discussed that icon at length in his book, “Contemplating the Holy Trinity.” It was very thoughtful, in a “Where’d all the wine go, anyway?” sorta way.
Howya, K.?