‘Every morning I wake up and scroll though my personal Instagram feed and spy "Insta Girls" posting unrealistic images of themselves,’ Karina wrote.
‘The girls I follow that portray these images have big followings, often with hundreds of thousands of young girls looking up to them as a role models.
‘As I scroll though the comments I find young girls tagging their friends "GOALS" and "OMG WHY DONT I LOOK LIKE THIS".
‘The truth is these girls don't look like this,’ she wrote. ‘They look like you, like everyone.
‘I have gone ahead and copied the classic "Insta Girl Edit" in my second image and below is what I have done to it.
‘Full body skin smooth, enlarged my booty, sucked in my tummy, sucked in my back. thinned out my arms, made my neck a tad skinnier, got rid of my scars and cellulite, made my breast rounder, lifted my booty.
‘After all these little tweaks, can you notice how my horizon is warped?
‘So many girls are so into how their Insta image is going to be portrayed that they don't even notice they have warped the background!?
‘Ladies, I'm not here to play mean girl towards others. I simply want to #inspire you to love yourself and stop comparing yourselves to unrealistic images online.
‘Look out for the signs of the "Insta Girl Edit" and don't take social media too seriously. Let's get real.’
Speaking previously about how she achieved her ‘booty’ on the Bikini Body Burn blog, Karina said she took a gradual approach.
‘I stopped running long distances - I was the definition of a Sad Sally - and started resistance training at Starke Fitness,’ she explained.
‘I trained, initially, two-to-three times per week for 45 minutes, then upped it to four-to-five times per week.
‘I also go for a three kilometre run once or twice a week, because I still love running on the beach and being in the outdoors – I just don’t run for long distances.’