Ive been watching this for a while now. I like the way this is unfolding so far. This reminds me of a water media painting.
Im curious as to how far (or less) you take the black ruled linework. I can see a thin dark non-uniform rule trapping shapes, going black were necessary (more akin to watercolor work), not as heavy and thorough as you have it on the man atm.
A couple compositional crits:
I think there is too much space on the left and a little too much on the bottom. I think the 3 figures need to be offset a bit more in the scene (toward the left).
Id raise the foreground table top to overlap the dress hem of the woman on the right, to reinforce the tables hierarchical placement in the space.
I think you are submitting to the dictates of your 3d rendered planar perspective distortion of the vertical lines in the composition. I think the verticals, especially on the right, need to be pulled inward at the top, in this case. Right Right now things look like theyre sliding downhill to the right, facilitated by the right leaning verticals. If you want to reinforce a vertical lines verticalness in a pictorial composition, dont make it vertical, lean it a tad to the left (unless its close to the left edge of the frame).
Here are some links to the watercolor artist Steve Hanks, showing some typical dark edged shapes, typical of watercolor work, in a more natural and nuanced manor. Probably too sublte for your intentions.
https://www.artifactsgallery.com/art.asp?!=A&name=Steve%20Hanks&ID=640#LINKS
http://2photo.ru/en/post/19286
Then again, you may be going for this look (?):
http://2photo.ru/en/post/27183
Looking forward to the next update.
Heres a po that better describes what Im explaining.

). Well, lets see how it looks with the darkened corner there…

) placement of these elements in relationship to the center of the universe of this image (the guy’s crotch in the dead center of the frame), you make a pretty strong statement about the fella, compositionally and symbolically. 


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