This is looking really good!! Clean lines, nice line weight, accurate proportions. I think if you did a clean up pass on this in graphite it would look great! I find it tough to get the best line quality in red pencil, they tend to be a bit waxy and soft, so they're great for loose sketching, thinking on the page, and laying out ideas, but hard to tighten up a sketch with. Using a darker lead to tie it all down will start to show you where your linework needs some attention. You could try a tapered stroke clean up pass using an HB-2B pencil to see if you can start to focus in on your line quality. Hope this helps, keep up the good work!

Hey David! There are a few options for tablets with displays to check out. Look into XP-Pen, Huion, and Wacom. Each have a range of sizes, display resolutions, and features to meet any budget. These display tablets that let you draw on the screen require a computer running a piece of software like Photoshop, Corel Painter, Krita, Clip Studio Paint, Etc. So the price of those programs (and a computer with enough horsepower to run them smoothly) is something to consider when buying a display tablet. Another option would be to look into an iPad Pro with Pencil, and a program like Procreate for a portable digital drawing solution. Procreate is an inexpensive app at around $20 compared to a yearly subscription for something like Photoshop, etc. so there are a lot of variables to consider. I hope this helps!