Article continues below advertisementBrittany Cartwright is turning heads - and fans can't stop talking about it.The reality star lit up Instagram with a sizzling bikini selfie, showing off a noticeably refreshed look while soaking up the sun on what appears to be a tropical getaway.In the snap, Cartwright confidently posed for the camera in a colorful, eye-catching bikini. Her glowing skin, voluminous curls and radiant smile immediately stood out, with many fans doing a double-take at her transformation.