I definitely do! This is the stream address, subscribe if you want email notifications for when I stream: https://picarto.tv/jengymonster - Sorry it's been a while, been doing private projects lately... :( But hopefully I can stream some public stuff soon!
Your stuff looks amazing! Especially the Link one, I feel like you tried something different with him, especially the facial structures and expressions, which I think, is a very nice change for him. Do you still stream your stuff on picarto? I'd really love to watch your lifestream!
Concept art tend to focus more on design and less on style and fine rendering, since the artwork itself is not the final product, only a step towards it. Not that you shouldn't hone your rendering to the max but the pieces should simply be design focused, showing off a particular thing and how it work, so perhaps you…