If you're hand quilting, don't SID. You can stitch with blue thread on the blue water and with brown thread on the brown boat. It will be lovely. If you're worried about your stitches not being perfectly uniform - don't! They will improve with practice. (I say that despite the fact that I'm not a hand quilter, but I sure admire those who are.) And I can't find anything to be embarrassed about in your close-up picture. You've done a wonderful job!