male or female three spot gourami?

I found two three spot gourami online for cheap, and am keen on getting them for my tank, the only problem is I already have a male gourami, so I don't want them if one's a male. I think one may be a male by the looks of these photos but I'm not sure, I'm not an expert on sexing them lol. If anyone feels they know what sex they are feel free to help. I only have a photo of their dorsal fins and can't get any other photos as this is the only photo the seller has posted Any help or input would be muchly appreciated!!

 

I know males are supposed to have pointed dorsal fins and females are more rounded, but I'm not a good judge of it, I'm sorry if this seems such a simple question lol.

 

I would say two females but it's hard to tell sometimes. The one on the left could be a male but the fin is a little short. I've seen males with dorsals that come to a sharp point and males with more subtle dorsals. Someone that is better at this than I am will have to give a definitive answer. I do know that a male and female might have to be separated after they mate.

 

The left looks like a male to me. The right may be a female. I have one and her dorsal is VERY rounded

 

A picture of the whole fish would be easier.