This is Akali's default scythe skin from League of Legends. I have posted two images below that show the detail and scale of the weapon. The scale of Akali's weapon is set for a female 5'5" tall. If you are taller or shorter I recommend adjusting the scale by the percentile difference in your height from 5'5". So, if you were 5'0" you would just take 10% off the scale of the weapon. So 34 inches in length would be 30.5 inches with rounding to the nearest half inch.
If you take a look at the image on the left, you'll notice the first image has more detail. I recommend using this one for her other skins of if you are going for a darker or more dangerous look. The blueprint skin is the actual current skin used by Akali as of update 5.11 (6/23/2015). I recommend using PVC pipe to reinforce this weapon if you are using EVA foam. It can bend under its own weight, especially after a long day at a con. As always, make sure you click the images first so you can save the larger image and not just the thumbnail.