Ash and Misty! I think they were like the first couple I remember shipping xD I really love/am inspired by how much you've improved since around the time you drew this and this picture is beautiful already!
this one and the one of the other picture are almost the same thing is it that much of a problem one or another? when I draw characters I make up new outfits the whole time, usually they're just 'one-shot's and they're not all that special either..