Good job for a first jam!
I managed to finish the second and third level by trial and error but the first one left me stumped. I think there are some explanations/objectives that dont show up properly for me..
I think the issue is with screen sizes, you have to make sure the game plays in a window that your UI can adjust to! try and check out canvas resizing tutorials so that the elements can always be visible on screen!
Otherwise I can see a lot of good things have been put in there so once again great job!