From the Painting Guide: I don't know what kind of church you've got near you that has members touting guns tucked in their trousers.... From the title of the painting (Signs) I realise there is symbolism that is passing me by, such as the significance of the lettering, the hand gestures, the number 18 in the background (is there any other overt symbolism?). Given that you say this painting is about individuals feeling the need to be connected, what I would have liked to have seen was an indication of more than just three people, to have some faint ghosting behind the figures suggesting a myriad of followers and mimics.

While you've used the compositional principle that an odd number of elements is better than an even number, the bottom halves of the three figures are too evenly spaced for the composition to be dynamic. The heads are at different intervals, but the centre and right-hand one are at the same angle. If you did want the figures to echo each other to emphasise "robotic behaviour" then the posture of the left-hand figure is out of sync. The nipples on the figures also seem rather high.

The faces don't suggest robot to me, I think it's because the features look too human and the surface of the material is not metallic enough. It reminds me more of someone who's got a paper bag over their had because they're having a bad hair day in a shampo advert.

Overall I think it's a good concept for a painting and would suggest painting another version, rather than reworking this one, then comparing the two.