Hey folks, can you please review this offer and tell me if this is a good offer for L63?

Current(Amazon SDE2):
Base: 46L
Bonus: 17L
RSUs: USD 90,000(With 15% vesting this year, remaining 40-40% for next 2 years)
YOE: ~8.5

Microsoft Offer:
Level: SSE(L63)
Base: 51L
Annual Bonus: 0-30% -> 15% on an average
SignOn Bonus: 8.5L
RSUs: $120,000, 4 Year Vesting Period

These are the original numbers. Please suggest room for negotiations.