I ran a business using solely flyers. Expect an average 1% response rate. I tried many designs and the arty designs did not pull as well as more wordy efforts in two colour print. To distribute the only guarantee to get them out there is to do it yourself. If you outsource this you will be tres fortunate to get 100% delivery. If you can deliver 200/hr you are Olympic standard.
Why not split the print with 2 designs to test?
Do NOT hit the street and throw them in the air! Do not put them under windshield wipers.
DO find out the demographic of your target market (I know, yawn!!) and deliver the leaflet to THEM.
I spent/wasted a lot of money on leaflets, but get it right and the rewards can be high. Redemption is the key. There has to be a real call to action to get the reader to respond and attractive though the leaflet appears I do not see a reason to take action and I find the many colours and shades distracting.
I'm an old guy and if this was me starting over I would be looking at placing QR codes on cards everywhere I could with the code and the simplest of text screaming at the reader to act.
Hope this doesn't sound too poncey or know it all. Just trying to save you a lot of wasted effort and heartache. I started off with full colour gloss print and ended up on two colour plain card, the cheapest. I also made an offer that ENDED just as I printed and started to distribute leaflets. That was a real blow as I had to pay for all the redemptions or lose credibility and my business. Starting simple is not a bad place to set out from.
As an encouragement if you find an offer good enough that you fully control you can actually SELL your leaflet just like the guys selling coupons on ebay today. I used to sell coupons for cell phones to clothes shops etc to give away as incentives for $10 and if the person redeemed the coupon I made $90 minimum plus all the upsells for accessories insurance etc. A much stronger response rate for these. The money is in the detail of the deal. I used the same technique to sell hair transplants! You can't download that!
Good luck, plan well, work hard and don't give up!