I do agree, the cheekbone is lighter than would be correct. I pushed the brightness of the upper part a bit to draw the viewers eyes towards where the eyes would be. In general I went fairly loose in terms of values compared to the reference.
That being said, I might have made it a bit to inconsistent when adding the gradient. It's definitely not supposed to stick out =). Thank you !
I like the skull studies. But I think you should darken the gaps in the mouth and the eye sockets.
@gregorya I think it would help the read a litte bit better in some of areas, but in general I tried to keep the shading very light. I want my lines to do the majority of the work for these kinds of sketches. That being said, especially the guy on the bottom could use a touch darker values in the nose and eye cavity. Thank you!
Aside from that, here's a preview on what I am working on. I initially wanted to do a goblin aswell, but as I was working on it I noticed that my imagination of a goblin was way bulkier than what Marc had in mind. So, I decided to push it further and made him really bulky, more like an Orc, while still trying to maintain a somewhat believable anatomy.
Let me know what you think!
I think this is looking great so far, a few things to consider, I cant see exactly how far the eye sockets go back but I think its likely you will need to dig out more material to make room for the actual eyeball, they seem to be pretty shallow even for a human. Many of these orc references I'm looking at have extremely recessed eyes. Another thing to consider if you want to go for that orc feel, most of the models that look good to me have a somewhat feral feel to them. The biggest thing that gives that feel is the shape of the maxilla and how it protrudes. I think if you want to go for a more orcish and feral feel basing the skull off of a monkey skull would be good, I see this Macaque skull has a really prominient maxilla which would give it a bit more animalistic feel. Other than that looking good! Might need a bit more mass on the back end of the cranium but a bit hard to tell from this angle. Also I think the bridge of the nose may be to wide as well, looking at some refrences even people with large noses the bridge skill seems fairly narrow, I think narrowing the bridge and defining the plane of the face where the nose turns into the cheek will give some more clarity. That being said very nice job ! Take it all with a grain of salt I have little to no experience with 3d! Just spitballing!
Hey, thank you for your critique =). For the eyesockets, depth is really not a problem in 3D. I'll just pop the eyeballs in regardless of the depth. Unlike traditional clay, overlaps won't be a problem. Still, it's worthwhile to keep in mind and I might even push them further back than I'd may have done otherwise.
In regards to the other points you mentioned, I played around a bit with your suggestions and agree, that the bridge of the nose should probably toned down a bit. For some reason I just really like pushing the nose of my characters up to a breaking point :D. For the jaw area, I might push it a tiny bit more but I'll likely keep him on the more human side. One reason is that it'd probably be a lot of (re)work to make him into a fully fledged Orc. In that case it's likely faster to just start from scratch. The other reason is, that I envision him more like a brute, but still human. I do have some ideas that I am exited to share once I am done.
@marco_cprn97 Thank you so much!
ooh this looks amazing!! 
im just starting to watch term 3 vids myself so excited to get into that
Calling it done. For some reason I get some weird artefacts when rendering, so here's just the viewport image with a little bit of post processing (and weird aliasing effects):
24 days later
It's been a while. Going through anatomy 3 drained my will to draw :D. But I did some stuff, here are some recent studies:
OOOH My my! these anatomy studies are AMAZING!! they look so good!!! they look like they can be part of an anatomy artbook or something. dat shading's just so good!
Nice job with those anatomy studies
The anatomy is top! And these lines 0.0 they almost have a kind of pencil touch to it. I love this <3
those anatomy studies are looking clean. hope you get your will to draw back.
These turned out so good and I like how you keep the boxes in for the presentation, the sketchiness adds to the appeal to these for sure! Definitely a good social post!
That's some very nice work. I like the line work and the shading.
26 days later
Wanted to start my post by saying "It's been a while", until I noticed that's how I start most of my posts :D.
Soooo.... it's been a while. I did however continue my artschool journey with the help of @Lockenheim, @holyjosh, Tell Byers and others. Not much else to say, here are my recent works.
Feedback is always appreciated.
Hello Xybb and welcome back. 
Ohhhh wow, that figure painting is amazing and I love the tribal design, what inspired you to make it?
Cheers!
Wooo I love your colors! Also great Characterdesign ^.^ Her left leg looks a bit overbend. I don't think the knee could bend in this direction, but better double check again I'm not sure xD
I love all the horns on her, makes her look dangerous 
