Show reels so really be no where more than a maximum of 3 minutes , try not to include long sequences as well as using recent material. Don’t feel as if you have to show every piece of work you create , include ones that represent you the most. Allowing yourself to feel free in the creation of your show reel there is no need to limit yourself to one type of style .Moreover the most important to note is that leaving your best work to the end of the line may not be the best way , as there could be some chances that you could wow viewers in the first scene. Show reels can very from anything however there are some factors that can dim how bright your show reel shines. Multiple  clips of the same characters can be rather boring and show lack of experience in this area. Along these lines also come out of peoples habits, as some will tend to keep out unfinished work or leave out their bad rough drafts. Be very clear and honest about what you have done . The industry is very small, people go from company to company and they are very familiar with other people’s work. Always include a credit list of the shots on the reel and what you animated for them.