What could be the improvements of this topology?

I am creating a local network for a faculty I am studying at. I need to construct a topology that has these necessities> 40 PCs for a network lab 1 Wireless access point 4 PCs that will be outside the lab subnet No special network speed needs (highest ISP - 80 Mbit). Classroom designated for a lab has 5 Ethernet sockets that are infrastructuraly connected to the cabinet where router should reside in the building. I am thinking of using all Cisco equipment with one router configured with zone based firewall, use 4 12 port switches for a lab, each providing access to 8 PC's, and an another switch for other 4 PC's that need to be managed + connect a WAP to it.

So, star topology for the PC's and switches, from switches it goes to the UTP ports on the wall, from the other side of those UTP ports in the cabinet just patch it with a router and configure the router with VLANs and zone based firewall.

What could be the improvements of this plan? I haven't yet made a graphical scheme but will do if there aren't some major mistakes that should be worked out.