Help! Is this a pullet or cockerel? 10 week old light Sussex

[SnowyJball]

Ok, so I have 3 10week old light Sussex babies, and after some research, I am quite sure that two of them are female, however, there is one that I am not sure about, and I really need some help!

So, this is Cloud, the reason why I am really unsure about his/her gender is that Cloud looks quite different from the other 2 siblings.
As shown in the photos I posted below, the cloud has a very big tail, that is tilted upwards a lot, especially when he/she is happy or playing around. Cloud is the only one that has this type of tail, which I am really surprised because he/she is the smallest (in size) out of the 3.
I don't see much of a difference from the colour and size of the waddle and comb, but Cloud was the first one to start comb and waddle development.
I am really stuck on the tail, and I really need some advice!

 

[3KillerBs]

At this age, tails are meaningless. 10 weeks would be a little young for saddle feathers to start showing their distinctive male shape, but if you look down in underneath you *might* be able to see some pointy feathers coming in.

It would be several more weeks before you can be sure.

 

[Johnny17]

Pullet

 

[NorseDad]

Looks like a pulley to my amateur eyes.

 

[Painted Calls]

I'm also seeing a pullet.

 

[-Flash-]

Pullet. I think.

 

[Erba]

I would also say pullet. The cockerels tend to have a longer collar down their backs, she has a neat round one.