It's kind of difficult to explain the process of what I did, but I'll give you the gist. What I did was take a picture of the doodle of the dog with my iPad. Then I went into an app called Sketch Club, clicked "Load image" and it put the sketch there. I had to erase all the paper on there, and carefully copy the surrounding shading and colour in those black numbers and stuff that were covering some of the dog. Then I copied several layers of the dog, applying various percentages of "darken" and "overlay" to each. Then, I merged them together, and made another copy of the merge. I used a medium opacity eraser to lighten up the areas I thought the light would be hitting. I already had a fairly good understanding of the darken and overlay features from the bat art I'd done, so I thought I'd try my hand at shading. Oh, and thanks for the praise (or semi-praise) of my pictures
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For the bat ones I uploaded the images of the bats from google and traced them. Actually, the end products look completely different from the photos I was tracing. I uploaded photos of actual bats to trace, and as you can tell, they definitely don't look realistic! Well, by that I mean a bit cartoony...okay I think you understand what I mean, maybe.
Man, sorry for the power paragraphs! Oh, and I was wondering when the Tomato Festival is. Thanks again!