Everything i read so far seems nice, keep doing it !
A small concern about the GUI, on this picture the list of skills on the left is fine, as there are only a few skills.
However when i will now the dozen more you want to add, i will have to scroll to view them all. I think the GUI could easily fit a much longer list, with less vertically-stretched skill tabs. Too much empty space up and down each skill's name, it could be 50% smaller.
Sure you can say it's pre-alpha, but from my gaming experienc over the past 30+ years, the final product is very often similar to the screen shown during alpha. Simply too much add and to do, to redo stuff over that.
So, it's about this picture, but also about all the other i have not seen yet.