Underwater scuba peril of Mabel and Isabella

asked me a fanart of Mabel (Gravity Falls) and Isabella (Phineas & Ferb) doing scuba diving but they're now in a perilious situation being trapped in a net by Draken (Kim Possible) and surrounded by 2 sharks under the Thames River in London with Big Ben, Tower bridge, London Eye and the Parliament then I drawed without success. It's also the first  time I drawed Draken and Isabella and Mabel doing wear a swimsuit more or less like the following fanart. fav.me/d6jr08u