Wonderful composition1 I love the colors also. But I agree with @Yiming Wu the edges of the cloud could be softened in places or lost in in others to increase that depth. Also I think you can push the hues to a bit more higher chroma in the cloud. Next time try creating the grays of the cloud with a combination of complimentary colors rather than straight gray. Overall it's a wonderful painting! I would love to see a series of these.

Looking interesting! Is it intentional that you made the cloud look like "cut and pasted"? There's some very nice paper-cut like effect on the lit edges. I think if to improve this, you can also put some more sharp edges inside the cloud so it has more "layers" of the fluffy shape.

Hi Gino, wonderful value study. Is she one of the Grafit Studio models? If so, than you captured her well. To work with one brush is a good way to start. Try now different brush sizes and blend the values together. That would my recommendation to you. Good work.... keep going.