Considering you did this with limited experience in programming and this being your first jam and what not i gotta say i'm very impressed! My first attempt at a game for a jam was...., bad, so i'm super proud of ya!
I actually really enjoy the simplistic aesthetic, mechanics and ui, there's something genuinely charming about the style you went with.
All in all great work bud, cant wait to see what you do with other jams down the line, :D