Stuff.
BA
You're getting better at depth, so that's pretty cool. Now you can start thinking about working on your lines, since they're fairly uneven much of the time.
Remember this thing that you've probably been linked? I'm talking about jaggies here. Always try to keep curves smooth and corners distinct. For corners between two visible surfaces (i.e. front and side of Reaperblock), there are a few dirt cheap tricks that can help accent it without a massive black line:
First of all, a bit of perspective works wonders. Secondly, i personally have three main ways to accent the corner (besides black line, which is replaced here): 1: Blend the shades for a smooth, rounded corner, 2: Abrupt change in shade for a neutral sharp corner, and 3: Highlight the entire corner to REALLY bring it out. You've mostly done the second version, although i'd love to see some more contrast between light and shadow. Sunlight is fucking harsh, so you get a lot of leeway in terms of "too much" (still possible, albeit surprisingly hard, to overdo it), although it is of course possible to have a cloudy day, just be aware that it tends to look less interesting due to the much more subdued shadows and highlights. Being bold can sometimes pay off, y'know. :v
Also note, concave (inwards) corners work the same way, EXCEPT that if you are to pull a number 3 on them, you should go with a dark line instead of a bright one. Just as a highlight makes a convex corner stand out, a shadowed line makes concave corners deep.
also reaperblock seems rather front heavyalso i decided to get going on rust removal from my digital doodling so
probably like 800 anatomical faults here despite it being cartoony
edit: it strikes me that one of those is missing eyebrows but OH WELL