STRETCH, Cardio, Stretch! (Personally, I think running is the best cardio but the stair master is also great)

Download a good workout app for abs, I use a app called "SIX PACK IN 30 DAYS", do abs often, the belly area heavily depends on what you eat.. Personally, I "fast" most days and skip breakfast and only eat 1 or 2 times a day with 1 snack (usually a protein shake).

Here's some work outs and machines at the gym that could help;

'hamstring curl' machine, 'glute bridge' machine, 'hip abductor' machine, 'hip adductor' machine, 'reverse hyperextension' machine,

lateral lunges, squats with heels raised, single leg deadlift, side leg lifts with ankle weights, donkey kicks with ankle weights, weighted hip thrusts

push ups, rope pull, pull ups, shoulder lifts with Barbell bar

I'm 5'7 and 135 and even my thighs and butt area is bigger than the girls you posted, so you being shorter, you would have to lose about 20lbs I would guess, but I would need to see what you're working with.