Pullet or cockerel

I'm a first time chicken owner with a flock of 20. The two pictured are a Rhode Island red (brown with spots) and the midnight majesty maran (pigeon looking one). They are the only two I think might be males based on picture 2's wattle coming in and picture one because if the redness and size of its comb compared to it's 4 sisters. In total I have 5 Rhode Islands, 5 marans and 10 leg horns. Other than those differences they are identical. The red is also the first to approach me overtime I enter, then all the others come over after she/he has done their scout. All checks are 55 days old (almost 8 weeks). Thanks in advance