The "series of pony reimagination" thing has been done by many, but not quite like this. There's something about swimsuits that speaks innocence and romance, but I can't put my finger on it. The location of a pond is a good match to the character of Applejack, and the inclusion of a picnic-type setup and her trademark hat set down by her side really make it feel like there's a story being told. And as much of a country girl she is, Applejack looks pretty good in a swimsuit. It's an interesting touch how you've pictured the pony's simple white freckles realistically, moreover adding some to the rest of the body. (Freckly breasts? Go figure.) Obviously you are very skilled with brushes, for you show a great attention to detail in highlighting with the shines, shadows, and water; in the style, it's very nice. And blurring the background effectively draws attention to the character at hand. If I might make one minor criticism, though, the left upper arm is noticeably skinny, and may make for jarring proportions. Overall, bravissimo! I shall have my eyes open for the rest of the series.
alright, some of you might be fans of my other critique on Pinkie Pie, but who the fuck cares about her pink hair, however FUCK THAT BITCH, here we have sexy as hell looking sexyjack, you want to know where she got those apples? from your heart (and wallet) but you don't care you would just drag your balls through a salt and barb-wire field of 400m just to hear Applejack cry through skype while on dial-up internet speed, but you don't care about that when you have this picture to sexually enjoy so all in all, you sir have won the internet again. 69/10 would look through a microscope 5 miles away from again if it meant to live 5 seconds more. just remember WE ALL LOVE YOU!
A bit sultry, but very cute, and nicely drawn to. Great humanization of her. I especially like how you did her freckle details on her face, shoulders, and such. I think you kinda went overboard with the shine effects on her skin, but that does kinda help make it look like she's got suntan lotion on, or has been in the water recently. I also like how you made her bikini orange, and the apples are a nice touch to. Very good pose, and anatomy, (though as smega39 said, one of her arms looks a tad to skinny) and great artwork overall.
I also like the pond background, sublight beams, and lilypads so even the background looks lovely to.
I like the themes going with each character, each one was a separate reason and setting for being in a biniki. Rainbow Dash at a public pool, endurance training. Pinkie Pie at a Pool Party, partying. Applejack relaxing at the pond near sweet apple acres after a long day of apple buck.
Randomly guessing at next three, Fluttershy at a Natural waterfall feeding fish/ aquatic animals (otters/ ducks). rarity at private poolside/spa on a recliner relaxing with a drink nearby. Twilight Sparkle at the beach reading a Book only to look up at the right moment with classic sunscreen on her nose.
Haha but no it's really well done, only thing I would point out is as you progressed from RD to PP to AJ your getting better at the sheen texture for wet skin. But AJ looks closer to oiled up for Earth Ponies Wrestling.