I can't say I'm a fan of abstract art or abstract sculpture. I suppose, really, it depends of how abstract the item is. For instance, there is a thing standing on the Gooses Acre roundabout in Midleton, which gives me a feeling of nausea just looking at it. It is in a bright shiny metal, shaped like a cone, with a flat metal spiral running around it from top to bottom, rather like one of those helter-skelters. Given the name of the place, I would much prefer a statue of a goose-girl and some geese, something pleasant to the eyes.
The Angel of the North in England doesn't look too bad from the photographs I've seen. It appears recognizably human, as do the statues of Cha and Miah, a statue by sculptor Oisin Kelly, officially named "Two Working Men" and meant for the outside of Liberty Hall in Dublin, but which was never placed there due to some dispute, and was rescued from storage to appear outside the County Hall in Cork, on a long term loan.
Another piece of Popular Art that I remember fondly is a life-sized two-dimensional cut-out of a cow with its head out over a hedge which I've noticed on journeys home from matches in Dublin. I think it's in Kilkenny, but I'm open to correction there.
On the gable end of a pub near Holycross in Tipperary is a mural of Cork and Tipperary hurlers in action, a little faded by now with the years, but it still brings a smile to my face as I pass it.
Abstract art/sculpture, on the other hand, seem to have no significance for the ordinary person. I have always felt that if art or sculptor has to be explained to you, then it's not doing it's primary job of communication. It's all very fine saying that a picture/sculptor is open to individual interpretation but when confronted by those things, my mind is just blank.
I feel that the place for abstract art is a museum where fellow enthusiasts can go and talk abstractly about it. I don't think it contributes anything to areas in outdoor public places.