One of the reasons I love quilting is that re-purposed fabric makes some of the most amazing and one-off quilts. I collect vintage fabric, anything that can be cut up and incorporated into a quilt or an embellishment for a quilt. No thrift store is safe from my "rummaging":).
Love the stuff you got...specially the pillow panels with the buildings, could be a brilliant quilt, as a centrepiece if you only have the one or incorporating more, surrounded by geometric blocks using plain fabrics that co-ordinate with the colours in the panel....see...salvaged bits and pieces just get the creative juices running:)....have fun and happy quilting.