Routing public ip block to existing another subnet

I am very new to microtik.
I am using RB2011uas-2hnd with 10 Ethernet port. my setup is simple

ip block provided by isp 185.211.xxx.96/30

WAN = eth port 4 with public ip 185.211.xxx.98/30

lan= eth port 5 with private ip 192.168.0.1/23 (masqueraded)

Default Gateway is 185.211.xxx.97/30
working good from my local lan.

recently i got 6 public ip address 185.222.xxx.184/29. and i want to route this ip addresses to some dedicated clients. my isp told me that they have routed this ip block to my existing 1. but i could not work them out.

what i did
i put first ip of this block 185.222.xxx.185/29 to a interface eth 6 of my router. configured a pc with 185.222.xxx.186/29 gateway 185.222.xxx.185 and connected to my router in port eth 6 . but no luck.

trace route result to 4.2.2.1
1 <1 ms <1ms <1 ms 185.222.xxx.185
2 <1 ms <1ms <1 ms 185.211.xxx.97
3 * * * * requested timed out
4 * * * * requested timed out

Now should i ask my isp again to route this ip block or i need some other configuration?

Please help. Thanks in advance.