Can you i.d. these flowers from Costa Rican trip?

These are but a few of the lovely flowers on my Costa Rican trip. Can anyone help me know what they are?

 

Second one is a Yellow Shrimp plant. Maybe Pachystachys lutea or something similiar.

 

First one Bird of Paradise, Strelitzia sp. maybe S. reginae
Musaceae (banana family)

 

1-bird of paradise
2- golden shrrimp
3-if attached to surrounding plants,it a form of ginger
not sure of the rest

 

4 could be Russelia.
7 looks like some sort of Clerodendrum.

 

1 = Heliconia psittacorum
2 = Pachystachys lutea
3 = Etlingers species
4 = Russelia equisetiformis
5 = Do not know
6 = Costus speciosus
7 = Clerodendrum paniculatum
8 = I do not recollect the name, but it is from Acanthaceae family, Shall lwt you know later.

 

8 = Schaueria flavicoma

 

Thank you so very much one and all. You're awesome. I know the first one is not a strelitzia because I grow some here in Los Angeles and they grow in clumps and don't resemble these. I figured it was some sort of heliconia maybe and it probably is that. One of the gardens gave it some sort of local name, like Indian or Chief's feather or some such thing but I neglected to jot it down.