Hello please can you explain how I can link E Ryu axe kick into crouching light punch? Commands to follow would be great. I have seen this as part of a combo which looks very effective.
If I have to cancel into it can you explain this?
Many thanks 
This is a matter of personal training,what u need to know about theory is,that,Axe kick(MK) is +4 on hit,so cr LP is a 2frame link since cr LP has start up 3.
Evil Ryu’s frame data here: http://wiki.shoryuken.com/Super_Street_Fighter_IV_AE/Evil_Ryu
Linking a combo,means,that u have to wait for the character to come to neutral position,like ending the whole animation of the move, in order to have any command that u pressed to come out.If nothing comes out after your press it means that u press the button too early,if the attack comes out but the opponent blocks,then u pressed it too slow =)
For more details about combo mechanics check the vid below:
If it didnt help then dont hesitate to ask,if i can help of course! =)
Really good video, thankyou