At this resolution, it's going to be very hard to distinguish your figure with details. There's nothing here indicating that it would be a robot without you verbally conveying that to us. We've established that the 2 vertical pixels are an eye but what are the 2 lines beneath the head? Right now they look like 2 lines. Add something that might convey character, ie antenna, mouth, etc, any simple detail that would help show what it is.