Implementing new Perspectives

I managed to finish the first of four books on drawing and animation that I started to experiment with last week. Here's the remaining pages that were done:

https://i.imgur.com/jGSacD9.jpg

https://i.imgur.com/pTNfDBs.jpg

https://i.imgur.com/J9z9VaQ.jpg

https://i.imgur.com/HhHSv6C.jpg

From there, I've wasted no time in going into the next book of exercises. This next book focuses on perspective drawing. I haven't been able to draw in perspective in a while, but I haven't lost my touch in that regard thankfully. Here's what I've done so far:

https://i.imgur.com/GpezABE.jpg

https://i.imgur.com/gKhcx5T.jpg

https://i.imgur.com/ExUy8GB.jpg

https://i.imgur.com/RhFhHj3.jpg