Value painting

[Lad]

 It's my first time really painting in GIMP so I could use some tips and critique from you. I made a sketch, scanned it and then started painting it.  I'll be painting on while I wait for a response. This is just a small part of the overall background, approximately 1/3 of it. You don't have to hold back, tell me what you think of this. 
Well here is the background.



Just noticed the monitor is missing a shadow. 

Thank you in advance!

[nihilyst]

It's a good start, I think. However, the desktop strikes me as way too low. Compared to the books, the desk's height is less than two books. Also, the LCD seems to small for me and the keyboard is too flat.
Other than that, I'd like to see more

[Anian]

I like what you're doing with values, but your perspective is off...by that I don't mean the actual way and angles the lines are drawn at but that you missplaced objects and they can't realistically fuction that way.

Most noticable, and might be easiest thing to fix is the right part of the table, it looks very off, that's because you didn't take into account the depth of the bookshelf - more of the right edge should be behind the bookshelf, if you correct that then the right edge of the table won't be so distorted. I see you tried to fix it already.  
I suggest you draw the right front edge of the table to be offest from the drawers part as much as the edge on left side is and then draw a correct line from there - the back right end of the table SHOULD NOT BE SEEN from this angle because the angle is at the same place the bottom, back, right corner of the bookshelf is.


(not correct perspective, just for demonstration)

Also, I don't know if you drew this from real life, but that monitor is low, put the pc casing below it (make it horizontal) and it should fix it a bit. And, what nihil said, the ratio between book and monitor and table size is off.


p.s be careful of detailing - keyboard and pc casing are detailed but other stuff isn't, I suggest you detail when you're done with primary shapes and composition, it will help with tracking what needs to be detailed so everything is evened out

[Lad]

 Firstly, yes it is drawn using a real room as a reference (not one on one, but some elements) I shall keep the bookshelf's size but then adding one more shelf to it.(It could be that because the books are huge the desktop looks small)  About the monitor - I'll see what I can do. Yeah the desk looks weird I know, I try to fix that - priority one.

It's my problem that I start to go into details too early.

Thanks for the feedback anian and nihilyst.