Hi Ud1093 I had a look at some of your hubs and they are quite detailed, but would certainly suggest to put them in a Microsoft Word document and check them thoroughly for grammar and spelling inconsistencies. As Hubpages have recently focussed on increasing the level of quality of the hubs, it's even more important to make sure the hubs you write are easy to read and logically structured. I would also recommend stating where you got your pictures from i.e. website and link - if you didn't take them yourself with a camera.
Your hub score may have gone down after being reviewed by admins and noticing the errors within your hubs and unfeatured also as a result. I know English isn't your first language but if you edit them and resubmit I am sure you will get them featured again and your hub score will improve. Hope it helps:-)