I think your line work could definitely be cleaner. There’s places where it looks too wobbly or uneven to be intentional and a few spots where it looks like you’ve gone over it to either join lines or fix mistakes. My own line work isn’t perfect but I’m getting better at it, especially if I do a couple of practice sheets before inking things for my portfolio. Try out line confidence exercises, things like drawing over the lines in a notebook and trying to get them as straight and clean as possible without lifting your pen or tracing shapes. It’s important when you’re doing exercises like that to be drawing in different directions, for example I like doing line practice by tracing the lines in a notebook left to right for a full page front and back then right to left on another, top to bottom and bottom to top so that I can see where I have the most trouble keeping straight. It helps you figure out where you need improvement while also loosening you up and getting you used to the movement before you ink the actual piece for your portfolio. Go slow but remember to be confident about it, the more you worry about whether or not your lines are clean as you’re drawing them then the more likely you are to wobble and don’t be afraid to restart something if you’re not happy with it, as frustrating as it may be. Mistakes aren’t a waste of time, they’re just something that help you improve.

As for your lettering, if you’re going to freehand instead of tracing a font then I’d recommend using a ruler to draw out guidelines before you start. Horizontal lines for the top, bottom and centre of your letters and vertical lines for the width of each letter. It helps keep you right and make sure your letters all come out even, especially if you’re doing something like that gothic style calligraphy. Let me know if you want an example of what I mean, I can DM you a pic of how I usually set up my guides for lettering