The reason it is good practice to keep the right side of the fabric to the inside when cutting out is that if you don't get to sew the garment for, say, a couple of years, and in the meantime the cat sleeps on it and someone spills something on it that washes out with neither water nor nail polish, then it's all on the wrong side.
And how come, when you do something you give a shit about everything goes wrong, but when you make a top out of polar fleece someone gave you, it all goes smoothly except for the bit at the very end when you run out of bobbin thread? Truly it is a mystery.
I tried to photo the top but all I got was a red mess. So here is a nice embroidered dress from the Oscar de la Renta 2015 Spring collection instead.