Really reminds me of designs by 3 Sisters re pattern and colours - almost but not quite re 'Lario' and 'Papillon'
The other designer that likes those types of 'shape' in her patterns is Barbara Brackman - usually associate her with darker colours, but who knows?
Do you know if they are all from the same collection/designer? And when you say 'old' do you mean a couple of years or more than that?
Best I can suggest is hit Google images/eBay etc and search with keywords - sorry not to be more help!