So about your page, a few general remarks :
• Don't worry about your skill level. That improves by doing. So if you're doing, your level will mechanically rise
• If your first comic fail, take that as a stepstone for future success. I had to fail some 8-10 projects before I could came with one that keeps me focused and entertained
• Small projects are obviously better to get things started. If you can draw a comic with a beggining, a middle and an end, even if it's ten pages, this is a huge success. Unfortunately people might never realize how hard it is, so you'll have to pat yourself on the back, but it is still a huge success nonetheless
Now on some specifics :
• Cleanelessness comes with a tradeoff ; the more clean it is, the more time it takes. Drawing a comic already takes a lot of time, and you might not want to overload yourself on your first project. So if you're going for sketchy lines, this is understandable and okay. What is important is the action needs to be understandable
• Which leads to my (only) real critic of that page : it's not clear enough. I mean I guess the action, but I don't see it. You need at least one wide angle of the whole scene, so the pawn's positions are clearly shown on the board.
• A good trick : use that kind of shot in the first pannel. Do it every time you change location. The first pannel of a serie should always be a wide angle, that shows the characters and the background. This is especially true if you're working in black and white. This is called an "establishing shot" and it is very useful to spare your readers some confusion
That said I'm very eager to see the comic progress, good luck !
Edit : Also I should mention that I approve of the use of perspective a whole lot