Help with Gender

Hi folks,

First time DWC grower here, have a 2X4 tent set up, 1000W LED with veg/bloom, I think I've got the light cycle's right (12 on and 12 off) after 6 weeks of veg, been in bloom for 13 days or so now with bloom nutes ramped up from 25% -> 50% -> 100% (going on day 18 with 100%). That said, I think I may have a male in the bunch, I have 3 plants (shown below), can anyone help with the sexing, I've labeled them for my own sake and to help with the ID process if possible :) - Thanks all!

l1.jpegl2.jpegr.jpeg
l1​
l2​
r​
 
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