Making a 2 color drop stitch “work” –

24+ Two-Color Crochet Stitches and Patterns

Knitting Color Work: Tips & Tricks - Brown Sheep Company, Inc.

Making a 2 color drop stitch “work” –

Long Raindrops Stitch Knitting Pattern for Beginners - Studio Knit

A beginner's guide to cross stitch - Stitched Modern

Shadow pleats with added patterning –

How to Kitchener Stitch - Ysolda

How to Finish off Crochet: 14 Steps (with Pictures) - wikiHow

Shadow pleats with added patterning –

Seamless Linen Stitch Crochet Pattern – Mindful Jay

How to Change Colors in Crochet - Easy Crochet Patterns