A corset will narrow the waist, and push a bit of it to the breast and to the hips. With a narrow waist, it will look like you have hips. Your arms will hang touching your hips, but there will be space between your arms and your waist. A drawback is that you probably don’t want to wear a corset on a hot day. Add a pair of breast forms in a bra and your figure will be more feminine.
As to the face, the answer is makeup and/or a wig. For example, I find my forehead is masculine looking, so if I wear clip-on bangs or a wig with bangs, it feminizes my face. Adding makeup is harder to describe because it depends a lot on your face (the shape, amount of facial hair that can be seen under the skin, wrinkles or lines, etc.). But if done right can do wonders.