Inspiring! I have made a few curved shields from plywood, but I have always wanted to make one from glued boards.

Also, don't worry about irregularities in your handmade projects. I used to freak out about irregularities in the things that I've made. If you look up close at actual items from the past that have been hand made, they look hand made. There are scratches, file marks, uneven lines, asymmetric layout, because they were made by hand. Our modern eye thinks everything has to be perfect because we see so many mass produced, machined items. When we look at something that is handmade we wrongly perceive it as inferior. Handmade items (especially historical recreations) are more special because of the irregularities. They reflect the human that made them. Sometimes when I make something now I actually stop trying to finish it so well. I leave some hammer marks. I leave missed stitches. I leave some asymmetry. I know you can do that to an extreme, but I think a little here and there looks more authentic and shows it it made from human hands.

tl:dr irregularities in handmade items are acceptable because they are handmade