Yes agree with @Alrik Vincent on this. Also, your website topic is good(Wallpapers), so if you put Eye catching & Amazing pictures, you definitely get more likes.
You can buy likes on Fiverr or use social exchange sites, although these likes don't do much apart from add to a statistic. Try and get traffic to your website and post the Facebook Page widget on there.
Good content and a dose of originality will do the trick. You definitely need to be consistent in terms of new stuff you add to your FB, people like schedules and updates on a regular basis - this makes them want to come back every now and then.
1. Don't buy FAKE 'Likes' or 'Followers' 2. Run the REAL Facebook ad to create a base of fans 3. Use Interesting posts to create a viral effect 4. Remember that eventually, quality will prevail.
Draw more traffic. Get FB friends' friends like it. Go to FB groups based on your page's product and advertise. Engage with people on such groups. Use a Twitter account. Make followers, and advertise your FB page with like-minded people. the same posts can be used on both software. These are free/low cost ways to boost traffic/likes.
There are some tips to get more likes in Facebook page. become a part of an external social media networking community.... keep your page worth visiting. create posts and inspired people to share your contents be consistent use eye catching images be relevant be creative with apps.
try mentioning your page on yahoo answers and other same places there is another easy way to get likes that I know is to buy service from freelancers on webs like SEOClerks for a small cost.
1. Do NOT buy fake "likes" from anywhere. 2. DO NOT BUY FAKE "LIKES" FROM ANYWHERE. 3. Post interesting things geared towards your niche. 4. They're not super popular on Facebook, but use hashtags that describe the content you're posting about. Cultivating a following that's not full of fake profiles takes time. Note: I've read a few articles recently (http://www.businessinsider.com/facebook-advertising-fake-likes-2014-2) that say advertising on facebook doesn't work very well to get real people to follow your page. Advertising is overrun by the "like farms" that try to legitimize their traffic. Content is basically king. Facebook is the new forum (this makes me sad).
I think posting content that requires people to reply works really well. If you post some sort of quiz and maybe offering a discount code or some kind of promotion if they share it on their page (if you are a business) is intriguing.