Well not the scale of all the objects. Just the wheel barrel.

That wheel barrel is way too big. Imagine someone standing holding it. Their waist would be at the handles. Now imagine that person and look at the objects next to the person. They look like...

http://fineart.sk/

There's thousands of references online. A quick google search will point you to them.

Ah, yes. I like it a lot so far. I see what you mean with the sofa idea.

Coming along nicely so far. I agree about the T-Pose. I highly recommend modeling in a T-Pose for the simple reasons that mirek has stated. For one you just have to model half of it. Also, you...

The objects are looking nice, but I'd like to see some composition. All the random objects aren't giving me an idea as to what you're going for.

It may just be me but it looks like that creature can't support itself. It has such a big body yet low ratio legs. It could just be where I'm used to thinking of dinosaurs being huge.

For some...

It probably would have done you more good to have not started with the exteriors such as the horns sticking out. That makes it a whole lot easier to just shape the body to your needs.

The anatomy...

The color is quite off. They don't look like solid surface marbles. Try making the glass show more and less glowing of the color.