My first knight, looking for advice

Hi guys, I'm new to this thread coming from a tyranid army, this is how my knight currently is, the weapons are a work in progress.

Is there any reccomendations you guys can make to improve this models or future models.

I'm still a pretty new painter with about 50 mainly small models under my belt, painting with white has been the bane of my existence since my nids were all a dark scheme.