Something else to consider that many people don't remember to mention, Having at least 1 girl of each type in each squad makes missions easier for that extra damage buff. Also for whale missions it's best to get a full squad of the weakness (hit for hit missions, slice for slice etc) as your first squad to mow down the lvl 100+ pests that board your ship.

Other than that, placing skill rate girls on the same squad can be very effective, I also find that making squad 1 mostly AoE girls with skill activate tends to win most fights in the first round.

With your girls I'd DEF / HP ampy the hell out of Anemone and have her take the extra skill 'Taunt', with her 3 hit skill she's also worth ATK ampies IMHO.