This artist's works have been suggested countless of times and I can see why! Lapin Jumi Twin by *Salmon88 is just one of the many jewels that can be found in their gallery! With soft, calming blue and golden hues this piece is reminiscent of a starry nightscape featuring beautiful designs and details! (
I love how you made the sheet look so starry with the perfect shadows where they belong. The hair looks really well made, but I think that at the ends of the bed it could look more like the hair is more popped off the bed and not flowing like a water fall down the side of the bed since their hair seems to be very wavy so it should have a bit more plump. (This is just a suggestion of course you did very well!) The weapon and outfits look perfect! The contrast that you used for the stars and moons are nice, but overall it was all well done.
But that's all that happened. This picture has twins on a bed, the other picture has twins on a bed. So? They're all different characters in different poses with different outfits, different expressions, different bed frames, different sheets, different colors, different lighting and so on. Aside from twins on a bed, they also both have tiled floors. Yea, the other picture was obviously an inspiration for this and maybe it should be cited as a reference. But this is not a copy.
I don't believe I ever said it was "copied," but if I did, I meant sparingly. Just think of it this way, if this were published in a book, and the original artist(s) (Clamp) were to see it, they could sue, and that's only because the similarities are prominent. It doesn't really have to do with the "twins on a bed," it's more about the composition, character positioning, and overall feel of the piece. Try looking at Incarnate, by Nick Simmons. Though some of his work is blatant copies, some are just...similar in composition, but are still considered copyright infringement.