First of all, congratulations on your weight loss.
If you have the same issue as the lady in the pic, you will have stretched skin which is difficult to get back to normal. The skin can only stretch ever so much without breaking (stretchmarks) and loose skin becomes a problem when one gains a lot of weight in middle age.
Look around your belly, are there stretchmarks? Look carefully as you will probably have stretchmarks which have have faded in colour and will be difficult to spot unless you shine some light on them. Stretchmarks, unlike commercial products will have you believe, cannot be repaired (they can be faded in colour though) and are the result of overstretching the skin. The latter is what gives the "sad face" appearance that the lady in that pic has in her belly.
My advice is to continue losing weight, have an optimal diet with plenty of fresh fruits and vegetables (these two food groups contain antioxidants which help repair the skin) as well as ensure adequate intakes of protein and fish (the latter for its precious oils). Moisturize the belly area with coconut butter and apply some topical vitamin E (preferably mixed tocopherols). Doing all this will help strengthened the skin and make it look as good as it can be possible in your case.
Be aware, however, that overstretched skin cannot be tightened up and the only way to remove excess skin is via surgery (abdominoplasty aka tummy tuck). I only recommend surgery when there is a gross excess of skin, the lady in the pic would not, for example, need surgery once she gets down to an aesthetic body weight as her skin excess is mild.
Lastly, I would recommend you to look into tretinoin (not to be confused with isotretinoin), also known as retin-A. Speak with your doctor or a dermatologist (preferably) as tretinoin can be of help in restoring the strength of the skin and improving its appearance. It helps in thickening stretchmarks too and is only available as a Rx in the USA. A good dermatologist can expand on this and provide you more in-depth information about the possibilities you have.
I hope that helped.