Yes'i too love Tarkovsky and Paradjanov(The Colour of Pomegranates is possibly the most extraordinary,original film i've seen, and Andrei Rublev and Mirror are 2 of the greatest masterpieces,screened by Brecon Film Society.I did an article on Tarkovsky for Moviemail recently)Your questions have coincided nicely with my interests.
Welsh films?I enjoyed Hedd Wyn,for the scenery and gentle lyricism ,though the low budget let down the War scenes ,i thought.Gadael lenin/Leaving Lenin was an entertaining Welsh school trip to Russia,-both these films were also screened by our Film Society,as was On The Black Hill.I'd like us to show more,but the standard must be good enough.I enjoyed Mindblowing,screened on T.V,was slightly disappointed by The Testimony of Taliesin Jones(perhaps i expected too much),Human Traffic had some promise,Twin Town similarly but it was a bit dumb and flashy.I liked Endra's positive image of Romany life.Truffaut's Anne and Muriel is one of his better,though underrated, films,and does some justice to the pretty Welsh coastline(its tale of a young Frenchman who falls for two British sisters-an inverted Jules et Jim- is worth seeing;Almendros' elegiac photography is lovely).I understand the Welsh/Spanish co-production,One of the Hollywood Ten,is good.I have to say i'm disappointed we're still awaiting the great Welsh Film-perhaps we could make more of our Arthurian legends(stolen by our larger neighbours-few are aware Welsh was the language of Arthur and Merlin,and once of England and much of Scotland!),with some sort of original cross between Tarkovsky and Paradjanov(this isn't the first time i've thought of this,so it's a coincidence you mentioned those two).Many famous films have a Welsh Connection-Lawrence of Arabia was Welsh, The Inn of the Sixth Happiness was filmed near Beddgelert,my favourite area(an Oscar worthy performance by the landscape,acting as China!)and we've produced our share of actors(4 Oscar winners,and Richard Burton).I didn't like How Green was my Valley,for the now long outdated and ludicrous stereotypes which somehow persist,and for its bizarre Irishness.You mentioned film director uncles.Are they well known here by any chance? Second Best,directed by double Oscar winning cinematographer Chris Menges was filmed at Knighton, my home town.A friend of mine had  a reasonable part as an Adoption worker ,alongside William Hurt.
Iranian Films;i'm a great admirer of contemporary Iranian Cinema-Kiarostami(Close-Up,The Taste of Cherry,The Wind will Carry us,Through the Olive Trees..),Mohsen Makhmalbaf(Gabbeh,A Moment of Innocence..),his precocious young daughter Samira(The Apple,Blackboards),Majid Majidi(The Colour of Paradise),Panahi(The White Balloon..)etc.They put British cinema to shame.We've screened 2 of them at our film society in the last year,they were very well received.An essential book on the subject is Close Up:Iranian Cinema Past and Present,by Hamid Dabashi.You may like Gabbeh ,as i do, as the visual style owes a little to Paradjanov.The countryside shown is interesting and the colours are gorgeous.The White Balloon is absolutely charming.Close Up is a quite brilliant examination of illusion and reality,rightly regarded by critics as one of the very best films of the decade.
I spent six consecutive Easters in Paris when i was younger-it knocks spots off London.I'm still a Francophile at heart. 
That's enough for now!Hwyl fawr.   