In the subject of color its not bad, but you dont really have bounce light and your cast shadows are a bit to sharp, I hope I help :)

Thanks for all the feedback, I kinda think I corrected it

Looking alright for cool/warm... The second one is more polished I can tell... Certain things I've noticed: 1) the shadow on the cube should be much darker as it's base colour is pretty dark and it's not facing much of a illuminated area 2) table is much brighter and for the left side there's no shadow, maybe it should reflect the strongest on the sphere and the edge of that cube? 3) Where the sphere is closest to the cone, an occlusion should be probably more prominent instead of a rather strong reflection. 4) The casting edge on the cube should be fairly soft as the face only has a narrow angle with the casting direction. Also some feathering on the far side of the casting shadow should be nice. 5) Maybe a lost edge on the contacting area, but this is largely personal preference XD. Adding "a stroke of dark red" at the contacting seam doesn't look quite natural IMO.. Did a quick paint over with my mouse... Nonetheless you are doing great! keep up the great work!

It looks nice Miguel. I think that with the intensity of your light source, your cube should reach a lot more the back of the cone. Also look at the cast shadow of the cone, it seems like the cube is over it like a solid thing. When it sould show something on the side face of the cube that we can see in the light. Also, now I am noticing that in the light your textures look like rough. But in the shadow you are like painting color reflection or the others objects. If this is an study, it would no be ok, because it looks like steal in the shadow and rocks in the light. However, if it is not a really strict study, then it is ok. Look for better references, I think you tried it from memory. Or you just rushed it. About the background. Being this a still life, I think that your contrast between your flour and like sky is the same that is going on in your three characters. So I would try to limit its presence. Instead of making a really clear line. What produces a lot of 90° angles with your darker objects. And thats ad more attention to the relation of the objects with the backgroung, instead the object themselves. Hope it helps. Keep working. It is clear where are your lights and where are your shadows, nicely done on that. PS: if you did it without reference, try to get it clear firt in your head, and sketch it planing light (main source, secondary source if there are, reflected light that is a way of secondary source) and whatever you see from reality. The thing is to understand how it works in real life and then try to transmit it in paper.

The shadows are very hard for objects lacking any discernible highlight.