New to SWAXE. What are recommended Decos for an Elemental SWAXE?

Trying the weapon out. Right now my equipped Decos on the weapon are a Power Prolonger/Frost Jewel, Critical Element/Frost Jewel, and a Critical Boost 3 Jewel. I have a 100% affinity armor build, with the weapon itself having 20% affinity. My Charm gives me Razor Sharp 3 as one of the skills. I have another Charm that has Master's Touch.

Is this good for what I need on my weapon? Just asking for the recommended Decos for the weapon itself, not my armor build. Thank you.