Last Follow-up to Two Previous MC 12/4 posts on 12/18/20 and 12/19/20 — Please Check My Plan?
Looks good to me. The most important advice I think I can mention is to make sure the two pole breaker you buy for this circuit is listed for use in your panel. Many breakers fit or seem to fit), but the bus connector is slightly different and doesn't connect well resulting in connection problems and damage to the panel. If you are not sure, send a picture of the panel and we can tell you what breaker to get.
If you haven't purchased the outlets yet, you might see if a GFCi breaker and 4 regular outlets is cheaper than the 4 GFCI outlets. You also need to consider where you would prefer the GFCI reset switch to be, at the panel or each outlet.
You must pigtail neutrals on multi-wire circuits but you don't have to pigtail the hots at each box, make sure you don't use the load connectors anywhere in this plan, but if the line screw terminals are screw-and-clamp rated for two conductors you can attach both red and both black wires directly to the GFCIs if you desire to avoid extra pigtails.