Solving network diagram

Hello experts,

I’m new to networking and trying to build above network.

It has DMZ and internal LAN is separated with from that.

LAN has three VLANs called VLAN 10, VLAN 20 and VLAN 30 and all the switches have VLAN spanning feature.

All of the servers can access the Internet from the DMZ using NAT.

I’ve attached what I’ve done so far and I’m unable to connect to DMZ internet from PCs. Also there may be some miss configurations.

https://drive.google.com/open?id=1xg88FIL0JEHDRrOtyPO8iVYGBhVN5HNS

Somebody please help me to resolve this.