He looks male to me, his tail looks pretty thick and I think I see a slight bulge at the base in that last pic but it's a weird angel... also he has a lot of pattern for his age, if he was a female. I think the only thing that would make me second guess is how pink he is, and how no color seems to be coming in but since he is a sambava that would only make sense at such a young age. I think he is really small for 4 months? but about the right size for just turning 3 months. I am no expert though. Also screameleons doesn't make mistakes very often... but if they did I am sure they would help you out, however you wanted.