Let me see if I understand...
1) Your D15 swap is running "bad" so you took it apart
2) You had bent valves on the No. 4 cylinder and put it back together like that
3) You re-used a head gasket
4) Now you have no compression on No. 2 cylinder
The fact that it even runs is a tribute to Honda.
You need to take the motor back apart. Fix the bent valves, and install a new