Indeed. Everything looks nice but the wood, which looks like plastic. I think the wood needs to be darker first of all. Then add some ridges and such by using lighting and shading. Use that image of Wally's ship-shack for reference. Right now the whole room looks like it's entirely lit so there's no dramatic changes in the lighting.
I'm no artist, this is just my personal observation. Maybe a real artist can come in here and confirm or deny what I'm saying.
This is very very promising, though!
"Booyah! Look out, LeChuck! Here comes Guybrush Threepwood's glowing sword of hot monkey vengeance!"
-Guybrush Threepwood, Tales of Monkey Island