It sucks to lose somebody from your team. Especially, if it's someone that is really experienced on a certain level of skill and the rest of you are not. If any of you on the team is inexperienced with programming, what I did to improve was take some online courses and watched many youtube tutorials. This is something is strongly recommend. But aside from that, the work you are doing looks great so far, with great use of objects and written text. Hope everything goes great with the team for the rest of the semester.