Board Thread:Critique and Advice/@comment-30488984-20180608003854/@comment-25684606-20180608095119

As for the blood, the best way to learn (imo) are reference pictures. (It's actually life drawing but that can be difficult with blood.) In general though, you should keep in mind that it's a fluid, so giving the drops and driplets a coherent direction should work in your favor. Try to think of how it splattered on the armor, as in left-to-right or up-down. Blood spray is the opposite, usually coming from the front so it's more of a mist, meaning lots of microscopic dots.

Metal: You can either chip of some paint to reveal the raw ceramite underneath or work with highlights. Most metals are somewhat reflective (unless they're treated to not), so some darker-than-base-color blurs on top of highlights put in the right place can work.

The key to drawing is observation, even if you're not drawing things realistically. Look at or take pictures yourself, watch tutorials and practice.

A good advice I had from one of my teachers is to not redo too much. Sometimes it's better to produce something flawed, find out what you got wrong and then start a new pic with that knowledge in mind.