Beauty is in the eye of the beholder and everyone perceives beauty in all different shapes and forms.. in which saying this the only person that judgement of appearance comes into play is by your own personal image of your self.
Obviously if you've lost weight than you will feel more confident and gain more self esteem naturally because your bettering yourself as a person and becoming happy with your physical form.
One thing to definately remember is that inner beauty within shines out through the body and is acknowledge more prominently than how you look on the outside.. alot of genuine people rather choose a beautiful hearted male/female rather than model material with no personality or heart.
Embrace your strengths, remind yourself your a good person, take the time to appreciate your body in any shape and form it is in, and love yourself sincerely.