Buttercream gelato seem fine to me, but the galaxy plant..... It ain't no deficiency, otherwise all the plants growing in the same soil would be showing the same symptoms. In this case, I believe, it is caused by bad genetics - basically a "mutant" type of plant. You could try and keep her growing if you are really keen, however if her leaves are this messed up, her flowers will probably be too. Personally I would cull a plant like that; it's not going to bring you any joy, sorry to say. Chalk it up to experience and maybe something to wonder about.
Hope this helps.... Organoman.