Lots of cool machine designs. The industrial designs are obviously the most finished and refined, but Orc stonethrower is my favorite posted so far. I always think the ones with interlocking bits and guts are the most interesting ones.
Something to consider on the toned paper drawings- it is super easy to get lured into using too much white, and it tends to make the drawing look amateurish (not just yours, anytime there's excessive white). Like, the highest value should be reserved for highlights, and the tone of the paper is already relatively light, so when you put that much white its like HIGHLIGHTS EVERYWHERE YAHHH. So yeah, just consider using it a little more judiciously.
the marker stuff and the ink creature drawings are a lot of fun. I really like the creatures.
McLean: Thanks for the comment, it's really helpfull. I often stop with the sketches at a point where I can judge whether I like it or not and where I can start putting in some color (with markers or otherwise) but it might be a good thing to shade them some more before moving on. A pencil might be a better medium for this than the fineliners I use though