What gender? Number 4 has a rose comb and number 5 has a different mother.

[Ineedhelpplz]

 

[Elie And Her Flock]

Generally I would seperate them into 2 groups based on similarities/differences (not counting #5 since the genes are different). #1 looks pretty different from #2-4, could possibly be a roo or hen (with the other 3 being the opposite sex). Not sure about #5 since it's mother is different from the rest. Sorry I couldn't provide more help! Wishing you the best. Keep us updated.