Guide to properly drawing mermaids Pg.11

Page #11 of my mermaid drawing guide. This one deals with types of fish and tails to use. Now I know this only features one type of fish tail and the rest are just shark, whale, and dolphin tails, but I'll get that after discussing tails for fish. Now for regular scaled fish, use just about any type of fish be it fresh water or salt water, for the basis of your mermaid's tail. However, I reccomend steering away from certain types of fish that wouldn't look right like puffer fish. Now for the other tails. Now while mermaids are tradtionally half scaled fish, some artists deoict mermaids as half shark, dolphin, or whale. Now I don't have much of a problem with this, but I think if you are going to have mermaids with shark/whale/dolphin tails, you should make the whale mermaids larger and giant size since whales are the biggest animals on earth. For the shark and dolphin mermaids, just have them regular size. Also I think if you are going to include those with regular fish mermaids, it would make sense to make the dolphin/whale/shark mermaids offshoots of regular mermaids. Terms like "tritions" or "merrows" could work.