You've got alot of really good fabric choices there. I've not got alot tbh I can use, some botanicals florals. Etsy here I come. I love these Cathe Holden fabrics, just what you need for pages
Beautiful fabrics, the flowers you have pressed beneath the books you can use the Hapa zome aka flower pounding method to print the flowers onto the fabric. I am doing this for some of my native flowers and leaves. Simply lay your flowers between fabric and with a large stone or a hammer or mallet, hammer each flower completely and you will have 2 printed pieces of fabric. Looking forward to seeing your Field Notes evolve. I didn't know where to start so I just stitched 'filed notes' onto fabric to get myself started.