Don't know if you are drawing from memory or life or a photo. Also, the image appears sideways. From this view, the proportions looks okay, so thats a great start
Check out rules on perspective. The angle of the computer table doesn't appear to be correct.
Also, adding a little shading will help bring out a more 3-D look.
I have a few tutorials on my Youtube channel if you wanna check out - https://www.youtube.com/channel/UC-m...ggocsirNUIvwRw
Overall a great start. Keep practising and sharing.