2 RouterBoard IPsec connection setup need help

Hello all,

I recently bought 2 RouterBoard (850Gx2 & 450C) for lab testing.

My physicial network layout and IP setup:
Layout_eng.gif
My goal is that both sides of PC can ping and network browse each other.

I follow the configuation below:
http://wiki.mikrotik.com/wiki/Routing_through_remote_network_over_IPsec
http://mikrotikroutersetup.blogspot.tw/2014/02/mikrotik-router-ip-sec-site-to-site-vpn-tunnel-configuration.html

The following link is my RouterBoard-A (850Gx2)'s settings, including IPsec, NAT, etc.
https://drive.google.com/folderview?id=0B6rDezDKkuGKTWxLMWJJSjJ0WDA&usp=sharing

Please help. What am I missing.

Best Regards

The following is my RouterBoard-A (850Gx2)'s settings.
01_Interface.jpg
05_IP_address.jpg
10_IP_Firewall_NAT.jpg

The following is my RouterBoard-A (850Gx2)'s settings part 2.
15_IP_Routes.jpg
20_IP_IPsec_Peers.jpg
25_IP_IPsec_Proposal.jpg

The following is my RouterBoard-A (850Gx2)'s settings part 3.
30_IP_IPsec_Policy_General.jpg
35_IP_IPsec_Policy_General.jpg
45_IP_IPsec_Remote_Peers.jpg

The following is my RouterBoard-A (850Gx2)'s settings last part.
50_IP_Firewall_Filter_Rules.jpg
40_Ping_result.jpg
Best Regards