[quote=@Tracyarmav]
If you have any tips for making characters with depth I'd be very grateful if decided to share, :).
[/quote]

Hmm not that I claim to be very good at it myself but what I do is try to imagine the character's reaction in various settings. How would they react to this or that? Or I interview them in my head to get an idea of what they think. To push their development further, I take them out of their comfort zones and into new situations that challenge them to change. 

Hope that helps, not that you seem to need any help anyway. xD