I've done some photos at marbled paper and fabrics I've done friday. I'm satisfied. Acrilycs I?ve bought gave to me good results, quite bright colours and nice floatability.
Next time I'd like to try starting from pigments and I'm going to marble only white fabric, not ecru. This time I had only ecru fabrics, that isn't ideal foro colours but for browns, that turned out very nice.
I've learned that thin colour layer on the methylcellulose size give pale colours on paper or fabrics.
I've learned that to have bright colours I've to have paints with high pigments concentration.
I've also tried some patterned marbling, using combs, or trying to do feathers.
These are white fabric pieces marbled:
Marbling on common copy paper:
Marbled ecru fabric, colours serie:
Marbled ecru fabric, brown serie... really nice in my opinion: