<p:galleria não exibe as imagens!

<p:panel header="Enviar Fotos Alunos">
			<h:form enctype="multipart/form-data">
				
				<p:fileUpload 
						label="Procurar Fotos"
						fileUploadListener="#{fileUploadController.handleFileUpload}"
				 		mode="advanced"
				 		multiple="true"
				 		sizeLimit="1000000"
				 		allowTypes="/(\.|\/)(gif|jpe?g|png)$/"
				 		update="messages"
				 		id="idcomponent"/>
				
			</h:form>
			<h:form>
				<p:messages autoUpdate="true"/>
			</h:form>
	    </p:panel>
	    <p:panel header="Visualizar Fotos Alunos">
	    	<h:outputText value="Sem Imagens" rendered="#{empty fileUploadController.fotos}"/>
	    	<p:galleria value="#{fileUploadController.fotos}"
	                    var="image" effect="slide" effectSpeed="2000"
	                    panelHeight="300" panelWidth="400"
	                    frameHeight="50" frameWidth="50"
	                    filmstripPosition="bottom" showOverlays="true">
	                
	            <p:graphicImage value="#{image}" />
				<h:outputText value="Imagem: #{image}"/>
				                
	        </p:galleria>
	    </p:panel>