I am a big fan of Samplers and yours is shaping up beautifully. I personally feel a Sampler is a wonderful way for a beginning quilter to be exposed to many different techniques. I started with a sampler and right after finishing it I tackled a Lone Star with set in seams, then attic windows and tumbling blocks, all with set in seams. I thank my early exposure to Sampler quilt for giving me the confidence to do any quilt pattern. You won't be afraid of anything once you complete this. Your fabrics are beautiful and you have already tackled some seriously challenging blocks, like the first one you pictured.