You can also try checking your status by email on abu dhabi visa office website. You just have to fill up the form online and type in your questions. We tried that 3 times, so far, they responded to our all 3 follow ups. But they are not that prompt in responding. the longest we waited for their response was 1 month after. Just don't make several follow ups, it might upset the visa officer. You can do follow ups once every 2 months. Since you just sent additional docs last January, you can send a follow up email to them, also to double check if everything you sent was alright. You can also try the help of your husband's MP to make follow up on your application.
Hi snowman.may I know how did you sent follow up to Abu Dhabi visa office about your application? Because my husband every month always sending email and they replied please allow time for processing.6 months we don't know about my husband application. Thanks