On Our Way

You say it's a lot of firsts, but I think the overall product shows how much time and effort you put into it. I know how it is to redraw a hand or foot mannnny times and then just have to keep going, so I won't point it out. I don't think he looks like he's running, but he does look like he's in motion or about to be in motion and that he is being weighed down by the figure on his shoulders and the rest of the characters do have a sense of interacting and are pretty well composed.

The level of details and the various poses and body language of the characters are nice. I think they would look more natural if there was a better sense that they are all on the same ground line. I also think it's a bit unclear at first that the figure on the right is pulling on the smaller character's leg because there isn't enough negative space or contrast in the values to draw attention to it. The shading looks fairly well placed, but you could have gone a bit darker to give it more depth (it's a bit pale and washed out especially against the background). The lines are nice and the characters have a variety in their heights and body types and clothing which makes for an interesting looking cast. The background doesn't really fit with the sense of motion I think you're trying to achieve and the font looks kind of tacked on there, so it may have been better to write it yourself or modify it.

Overall, looks very interesting and cool. What are these characters for?