seeing as you said you wanted some crits, here is what i thought...

i think the septum looks really wide and the texturing around the nostrils looks a little odd.

the hands look like they need some work, as mentioned the fingers looks thin and the space between them looks wide.

and I think the the shiny armour is cool but it looks blue in that last picture because i guess its reflecting an HDRI that doesn't make sense with the background.

I think its good tho, i wish i had more free time to work on something like this.