I can see why he was happy- you touched down straight. Side-loading the gear is not a good idea; it may not do any damage, but if you bounce from a sideways landing you will be in a most unpleasant situation. Overall I'd say your crosswind technique was good. You seem to understand what's needed.
Off-center is OK if you have room, but sideways? Bad... people often screw up by trying too hard to nail the centerline; it's more important to touch down straight in a crosswind, as long as both wheels are on pavement and the wings are clear of obstacles.
It's hard not to wobble in a 150- it's a light airplane, and it's easy to over-correct until you get more experience. That's part of what makes it such a great trainer- it keeps you awake.
Was it sort of gusty, or were you just over-correcting a little? I'm not saying I did any better at 7 hrs, but the nose was wandering a bit...
And as long as I'm nit-picking, I'd advise you to not come in quite so shallow, especially with wind that is not 100% steady. First time you make a really fine short-field approach you'll see how simple it is to come in steeper without descending too rapidly or slowing down too much... it's nice to have more air between you and the ground on final; it's not just for approaches with obstacles very close to the runway, it's a good general practice, IMHO.
First time your little 150 gets a good downdraft or enters a shear zone on final you'll see why I believe that.
Turning to base a little early helps, too- even with no wind, in a 150 you can pull the throttle all the way out abeam the numbers, dump 20 degrees of flaps, and make a 180 to the runway to touch down on the numbers at most airports. That's an excellent engine-out practice exercise; if your CFI hasn't shown you that yet, ask him to.
I don't normally do that, but my typical approach in a 150 is somehwere between that extreme and "dragging it in", wwhich I try to avoid.
It's surprising what the humble 150 can do sometimes... you've made a good choice with that trainer. :)
Good throttle management, BTW... all the way down you were thinking about what was needed, and that last little shot of power was a good idea, with all that runway ahead.
Good job!! ;D
