here is the code..... so i need to merge it.... and display the last image.
For inline VFpage.....

<apex:page standardController="contact" extensions="InlineVFPageController">
  <apex:pageBlock>
      <apex:pageBlockSection>
          <apex:pageBlockSectionItem>
              <apex:outputLabel>First Name</apex:outputLabel>
              <apex:outputField  value="{!conDetail.firstname}"/>
          </apex:pageBlockSectionItem>
          <apex:pageBlockSectionItem>
              <apex:outputLabel>Last Name</apex:outputLabel>
              <apex:outputField  value="{!conDetail.lastname}"/>
          </apex:pageBlockSectionItem>
         
      </apex:pageBlockSection>
  </apex:pageBlock>
</apex:page>

Class code for inline vfpage...

public class InlineVFPageController{
    public contact conDetail{get;set;}
    //Constractor
    public InlineVFPageController(ApexPages.StandardController obj){
       Contact  con = (contact) obj.getRecord();
       conDetail = [select firstname,lastname from contact where id =: con.id];
    }
}

For attachment...
//class code

public class AttachmentController{
    public contact con{get;set;}
    public attachment att{get;set;}
    //Constructor
    public AttachmentController(){
        con = new contact();
        att = new Attachment();
       
    }
    public pageReference save(){
        insert con;
        att.parentId=con.id;
        insert att;
        //return new pageReference('/'+con.id);
        return null;
    }
}
//Page Code
<apex:page controller="AttachmentController">
  <apex:form>
      <apex:pageBlock>
          <apex:pageBlockSection>
              <apex:inputField value="{!con.lastname}"/>
              <apex:inputField value="{!con.city__c}"/>
              <apex:inputFile fileName="{!att.name}" value="{!att.body}" contentType="{!att.contentType}"/>
              <apex:image value="/servlet/servlet.FileDownload?file={!att.id}"/>
          </apex:pageBlockSection>
          <apex:commandButton value="Save" action="{!save}"/>
      </apex:pageBlock>
  </apex:form>
</apex:page>