Can you help me with ID'ing these acros please?

[espenlg]

I have some acros that I only call "Acropora sp.", but perhaps you can recognize some of these and help me with an ID?
Thanks in advance!

Acropora 1:


Acropora 2:


Acropora 3:


Acropora 4:


I would really appreciate some help with these! Thanks :-)

[JackKerouac]

#1 A.tortuosa
#2 A.tenuis
#3 A.aculeus
#4 not sure

[twon8]

agree with the above, i'll throw austera as a possibility for 4, but it needs some growing out to do

[espenlg]

Thanks! I'll let it grow some more and give it another shot later.