Stamp your Kay Carley florals over the splodge - I used the border from the Kay Carley EKC65 stamp set - and paint in the details with contrasting colours. In this case I went for a range of mauve shades including Fresco Finish Chalk Acrylic Paints in 'Moonlight', 'Globe Thistle' and 'Pansy' with some added 'Granny Smith'. Using some form of stamping platform is really helpful if you want to paint and re-stamp the image.
To make the book more interactive you may want to make some coordinating tags, index cards, trims, etc (again, digging through your dies and see what you already have to play with for this). I used a technique previously shown HERE, dipping and drying a piece of card through three layers of heavily diluted Fresco Finish Chalk Acrylic Paint. Start with a full coverage layer of 'Globe Thistle' before dipping your dried card into droplets of 'Moonlight' and finally into droplets of 'Pansy' to get that splashed look.
The little dragonflies that were added to the stamped border on this page can be found on the Kay Carley PS080 stencil.