Here are some sketches I am doing as a warm-up.

Btw I started an online course with Watts Atelier. I am very happy with the way they teach.

Yesterday's practice. 

short video of the process. 

             

An Oviraptor sketch. Reference - a small toy I bought from the National History Museum.

 

And here a speed up video of how I drew it. It took me about 35 mins.

                   

I love turtles... For reference I used a small turtle toy I bought from the National History Museum.

As a reference I used a small t-rex toy I bought the National History Museum shop. I had to invent some of the elements.

Some sketches did while at the National History Museum.

 

Another one from yesterday.