I doubt you'll end up reading this, but any tips for an aspiring digital artist? I want to achieve a similar style in my paintings, but so far I have been stuck in the linework-y almost anime style artwork that in my view is so inferior to your own. How do you get these paintings without (from what I can tell) linework, and manage to get such great textures???
think in shapes. it's like painting with oil or acrylic, you wouldn't necessarily draw the outlines of the shapes but you would instead block it in with a stroke of the brush and build on top. the textures are just from the brushes I'm using so don't try to actually paint the texture: it doesn't work like that.
i notice you do a lot of pencil drawings. try this: draw only the shadowy areas of objects with only the side of the lead in five strokes or less. no smearing or smudging. it will look silly and it will look abstract, but this will force you to think in shapes.
for photoshop, try the same thing except with hard edge brushes (with a bit of pressure controlled transfer) with a brush size no smaller than 50 and opacity no lower than 90%. though this does have soft brush strokes and textured brush strokes, this is a good example of what it should end up looking like: [link]
a lot of it also comes from knowledge and mileage so study up on color (as explained through light. if you can explain why a matte blue car looks different in sunset as compared to in sunrise, you're on the right track. the color theory stuff that involves things like the color wheel is mainly for composition reasons.) and NEVER STOP DRAWING!
I can't do this either but some general tips to avoid the line art/ anime look is to use the proper values and colors. Obviously, there's a lot of practice involved with brushes and sampling to get the proper textures too. My suggestion is to take a certain aspect of a digital painting you like (for example, the shoulder pauldrons) and try to replicate it to the best of your ability.