Your amount of 5.3 oz for lye is showing me you forgot to enter in a superfat (I entered your recipe into SoapCalc and I come up with a negative 1 superfat for 5.3 oz lye). I would enter in a 5% superfat so that your soap does not come out lye heavy. Your water amount is fine, though.
As for the rest of your formula...
That's a lot of castor oil for the type of formula that you have there. SoapCalc shows me 22% worth of castor. That much castor would be fine in a much harder bar with more solid fats, but in your particular formula with 52.86% combined soft oils, you may find that your finished soap feels somewhat on the soft and sticky side. If it were me, I would drop the castor to 10% of your formula or below.
If your skin tends towards the normal to dry type (like mine), you may find your formula to be somewhat drying. At least I know that I would....... unless you compensated with a higher superfat of at least 8 or more. But that's just me. Oilier skin types might be fine with it.
For what it is worth, if I were to re-write the formula to customize it to my own normal-to-dry skin-type, this is what I'd end up trying:
Olive oil 12.6 oz (36%)
Coconut Oil 11.2 oz (32%)
Castor Oil 3.5 oz (10%)
Shea Butter 5.95 oz (17%)
Canola Oil 1.75 oz (5%)
Water: 10.5 oz
Lye: 4.7 oz (8% superfat)
IrishLass
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