I have two Conference pears put in two months ago grown as espalier on sunny wall. They flowered but now the leaves are curled and dry. maybe lack of water, dont know, hope they will recover. Also will they cross pollinate okay.
Young tree can take time to settle and may not fruit in the first few years. Water them in any dry spell of more than a few days as they have not yet rooted out into the soil, until they show good growth.