Turn it inside out and press. If you sewed instead of serged, don't forget to grade or clip the seams, being careful not to cut your stitching. Whip stitch or topstitch the turning opening closed. Sew the shoulder seams. Sewing Hints Be careful in your cutting.
Precision is important with tiny garments.
Make sure you cut on the straight of grain. Never cut off grain to try to save fabric, in the long run, it saves neither fabric or time, since the garment with washings will stretch out of shape. Be sure to pin for accuracy. It is tempting with a small garment to finger pin, but since precision is important, use pins. Silk pins work great for tiny garments.