Requesting her bikini top/bottom changed to striped panties/bra. The bottom can remain basically the same, but change her top to have bra straps instead of knots.
If possible, give her ass the outline of a crack so there's actually some detail, and maybe give her lower back some more detail as well and fix the continuity (do this with the original too if you can.) And since it's Mio, give her a slight blush.
Link to full size, edit this one:
https://danbooru.donmai.us/posts/1151142(Please also remove the box and text, and the dirt on the scan.)