I have a special fondness for sketch number 6, I'm glad to know which were your favorites.
The most difficult thing was to try to coordinate the time, since I have other obligations, like my work, there were days that I really slept very late drawing, but I improved a lot and I learned new techniques and that's the important thing.
To finish in this way was a great intensive to keep showing the best of me, without doubt it was exhausting but I am very satisfied with everything I got as an artist.