We are printing images to a pdf using XSL fo. our aim is to print them in row wise but those are printing in column wise. Any suggestions please - xslt-1.0

Question

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.1" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:fo="http://www.w3.org/1999/XSL/Format" exclude-result-prefixes="fo" xml:space="preserve">
<xsl:output method="xml" version="1.0" omit-xml-declaration="no" indent="yes"/>
<xsl:template match="assets">
<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
<fo:layout-master-set>
<fo:simple-page-master master-name="one" page-width="216mm" page-height="279mm" margin-top="10mm" margin-bottom="5mm" margin-left="10mm" margin-right="10mm">
<fo:region-body column-count="5" margin-top="1cm" margin-bottom="1cm"/>
<fo:region-before extent="1cm"/>
<fo:region-after extent="1cm"/>
</fo:simple-page-master>
</fo:layout-master-set>
<fo:page-sequence master-reference="one">
<fo:static-content flow-name="xsl-region-before">
<fo:table table-layout="fixed" width="100%" font-size="16pt" text-align="center">
<fo:table-column column-width="proportional-column-width(1)"/>
<fo:table-body>
<fo:table-row>
<fo:table-cell>
<fo:block>
<xsl:value-of select="title"/>
</fo:block>
</fo:table-cell>
</fo:table-row>
</fo:table-body>
</fo:table>
</fo:static-content>
<!--footer-->
<fo:static-content flow-name="xsl-region-after">
<fo:block font-size="8pt" font-family="Arial" text-align="left">All rights reserved.</fo:block>
<fo:block font-family="Arial" font-size="8pt" text-align="right">Page <fo:page-number/>
</fo:block>
</fo:static-content>
<!-- body -->
<fo:flow flow-name="xsl-region-body">
<xsl:apply-templates select="assetExport"/>
</fo:flow>
</fo:page-sequence>
</fo:root>
</xsl:template>
<xsl:variable name="width" select="#displayValue"/>
<xsl:template match="assetExport">
<fo:block-container border-color="#D3D3D3" border-style="solid" border-width=".8px" margin-top="4mm" keep-together.within-column="always" width="36mm" height="56mm" scaling="uniform">
<xsl:apply-templates select="thumbnail"/>
<xsl:apply-templates select="metadata"/>
</fo:block-container>
</xsl:template>
<xsl:template match="metadata">
<xsl:apply-templates select="property"/>
</xsl:template>
<!-- Render the images -->
<xsl:template match="thumbnail">
<xsl:variable name="src" select="."/>
<xsl:choose>
<xsl:when test="$src = ''">
<fo:block-container>
<fo:block width="30mm" height="40mm" font-weight="bold" font-size="12pt" text-indent="5mm" margin-top="3mm" margin-bottom="2mm" margin-left="2mm" margin-right="2mm">
<xsl:text width="30mm" height="40mm">No Preview available</xsl:text>
</fo:block>
</fo:block-container>
</xsl:when>
<xsl:otherwise>
<fo:block margin-left="2mm" margin-right="2mm" margin-top="0mm">
<fo:external-graphic src="url(file:///{$src})" width="32mm" text-align="center" display-align="center" content-width="scale-to-fit" height="32mm" content-height="scale-to-fit" scaling="uniform"/>
</fo:block>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<!-- Render the metadata WITH Prompt -->
<xsl:template match="property">
<xsl:choose>
<xsl:when test="#prompt = 'Expiration Date'">
<fo:block margin-left="2mm" wrap-option="wrap" width="34mm" height="30mm" font-family="Arial" font-size="8pt" color="black">
<xsl:value-of select="(concat('Expiration Date: ',substring(child::property-value/attribute::displayValue,0,11)))"/>
</fo:block>
</xsl:when>
<xsl:otherwise>
<fo:block margin-left="2mm" wrap-option="wrap" width="34mm" height="30mm" font-family="Arial" font-size="8pt" color="black">
<xsl:value-of select="attribute::prompt"/>
<xsl:text> : </xsl:text>
<xsl:value-of select="child::property-value/attribute::displayValue"/>
</fo:block>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>